Used Optimum Ddp 50 for sale (34,860)

Condition: used, Year of construction: 1998, Spindle mount, MK 3, drill chuck 25 mm, clockwise/counterclockwise rotation, 12 speeds: 120 to 2580 rpm (belt change). Bdjdpfx Afoz Eb A Ee Aoh Storage location: Nattheim.

Condition: reconditioned (used), Year of construction: 2015, functionality: fully functional, With 3-axis digital display Year of manufacture: 2015 Spindle bore: 54 mm Distance between centers: 1000 mm Center height: 200 mm Bdsdpfx Ajyybxnjf Aoh Speed range: 30 – 3000 rpm, stepless speed control with display on screen Including the following accessories: Multifix tool holder Coolant system Three-jaw chuck Ø 200 mm Four-jaw chuck Ø 250 mm Collet chuck complete with collets up to Ø 32 mm Chuck guard Chip guard with lighting Fixed steady rest Ø approx. 150 mm Travelling steady rest Ø approx. 100 mm 4 pcs. height-adjustable machine feet 1 pc. live center Operating manual

Condition: new, diameter of brush Ø 250 mm width of brush 40.0 mm turning speed range 2850 U/min voltage 400 Volt total power requirement 1.3 / 1.8 kW weight of the machine ca. 36.0 kg dimensions of the machine ca. 415 x 467 x 356 mm Bjdpsxaamnofx Af Aedh Equipment: - Deburring of individual pieces and small series - Deburring of stretched round, rectangular and square tubes + flat material - Heavy, durable industrial design - with maintenance-free motor - long service life and very smooth running thanks to balanced rotor - with quality ball bearings - storage area for safety glasses - incl. 1x multi-purpose wire brush, wire thickness 0.35 mm - operating instructions

Condition: new, turning diameter 420 mm turning length 1500 mm swing diameter over bed slide 250 mm Swingdiameter in the bed bridge 590 mm centre height 210 mm Turning length in the bed bridge 260 mm reus 16 (45-1800) U/min tail stock MK 4 quill stroke 120 mm diameter of quill 50 mm spindle taper DIN ISO 702-2 Nr. 6 spindle bore 52 mm spindle cone MK 6 feed längs 17 / 0,05 - 1,7 m/min feed plan 17 / 0,025 - 0,85 m/min total power requirement 4,6 kW weight of the machine ca. 1340 kg dimensions of the machine ca. 2440 x 915 x 1375 mm Fully equipped master and feed spindle lathes. TH 4215 with digital position indicator DPA 21 / 3462070 - Hardened and ground Z-axis guideway - Spindle mount Camlock DIN ISO 702-2 No. 6 - Precisely crafted slide - Hand wheels with adjustable fine scaling 0.04 / 0.02 mm - Quadruple steel holder - All guides can be adjusted using V-ledges - Adjustment range top slide ± 90° - Guaranteed concentricity of the spindle nose better than 0.015 mm - Main spindle running in oil bath - Smooth-running gear wheels, hardened and ground with 2 adjustable Precision tapered roller bearings - Hand wheels decoupled and tested according to EN 23125 - Two-channel right-left switch tested according to EN 23125 - Switch with life cycle calculation, tested according to EN ISO 13849 - All metric pitches in the range 0.2 to 14mm/rev and all Inch threads in the range of 72 - 2 threads per inch without changing the Change gears adjustable by shift lever in the control panel - Clockwise/counterclockwise rotation can be switched on the bed slide via the switching spindle - Central lubrication in bed slide - Meehanite cast base and machine bed in one piece - Lead screw cover - Emergency stop device with foot control Bdedpjk Egrpofx Af Aoh - Safety handwheels with snap-out function in the X and Z axes - Tailstock for taper turning adjustable ± 10 mm - Tailstock quill and hand wheel with adjustable fine scaling 0.025 mm - Quick, easy and tool-free adjustment using a clamping lever - Heavily ribbed prism bed, induction hardened and precision ground cast iron - Coolant device with separate coolant tank with level indicator and oil separator; easy and complete emptying and cleaning according to DIN - LED machine lamp in the chip guard Models TH 4210D and TH 4215D with digital readout DPA21 - User-friendly membrane keyboard, splash-proof, closed andglare-free - Glass scales scope of delivery - Fixed bezel passage Ø 15 - 145 mm - Revolving bezel passage Ø 10 - 75 mm - LED machine light - Reducing sleeve MT 6 / MT 4 - Fixed center MK 4 - Change gear set - Position stop with fine adjustment - Initial filling of the machine with quality oil - Operating tool Incl. special accessory OPTIMUM three-jaw lathe chuck centrically clamping Ø 250 mm Quick change holder SWH5-B set

Year of construction: 2017, condition: ready for operation (used), X-axis: 550mm, y-axis: 305mm, z-axis: 460mm, milling table dimensions: 800x320mm, T slots: 14mm/3 pieces/distance 100mm, max. table load: 300kg, spindle to table distance: 100-600mm, number of tool positions: 12, max. tool diameter: 70mm, max. tool length: 300mm, max. tool weight: 6kg, tool change time (T to T): 7s, milling spindle power S1 operation: 5.5kW, power S6 30% operation: 7.8kW, torque S1 operation: 35Nm, torque S6 30% operation: 50Nm, spindle holder: ISO 40/BT40x45°, coolant system pump output: 650W, tank capacity: 120l, compressed air minimum connection pressure: 0.6MPa (6bar), air consumption: 0.1-0.15m³/h at 0.6MPa, compressed air quality: ISO 8573.1 class 2, compressed air connection: 3/8 inch, connected load: 12.5kVA, control: Siemens SINUMERIK 808D MILLING, length: 2164mm, front width: 1520mm, side width: 1860mm, height: 2200mm, door opening range: 760mm, door opening width: 1055mm, foundation/installation area: 1520x2080mm, weight: 2.8t. An on site inspection is possible. Bdjdpfx Afezcfk Es Ajh

Condition: ready for operation (used), Year of construction: 2015, spindle speed (max.): 4,000 rpm, travel distance X-axis: 240 mm, travel distance Z-axis: 550 mm, total height: 2,000 mm, total width: 1,870 mm, overall weight: 3,200 kg, controller manufacturer: SIEMENS, product length (max.): 4,050 mm, number of slots in tool magazine: 12, number of axes: 2, Horizontal turning machine manufactured in 2015. This Optimum OPTIturn S 600 features a turning diameter of 320 mm and a turning length of 550 mm. It includes a hydraulic turret with 12 tool slots and a spindle speed range of 30 – 4000 min¯¹. If you are looking to get high-quality turning capabilities, consider the Optimum OPTIturn S 600 machine we have for sale. Contact us for further details. • Turning diameter: 320 mm • Turning length: 550 mm • Swing diameter above machine bed: 550 mm • Swing diameter above cross-slide: 370 mm • Main spindle bore: 76 mm • Spindle bore with hydraulic chuck: 200 mm • Spindle taper: A2-6 • Drive motor output: S1 (continuous) 11 kW; S6-30% 14.3 kW • Turret type: Hydraulic VDI 30 • Number of tool slots: 12 • Rapids movement X/Y-axis: 30/36 m/min • Tailstock chuck: MT4 • Quill stroke: 80 mm • Quill diameter: 75 mm • Total rated value: 30 kVA Technical Specification Counter Spindle No Driven Tools No Bsdpfx Afezg Eame Aedh

Condition: ready for operation (used), Year of construction: 2015, travel distance X-axis: 550 mm, travel distance Y-axis: 305 mm, travel distance Z-axis: 460 mm, controller manufacturer: SIEMENS, total height: 2,200 mm, total width: 2,164 mm, table load: 300 kg, overall weight: 2,800 kg, spindle speed (max.): 1,00,000 rpm, spindle motor power: 11,000 W, number of axes: 3, This 3-axis Optimum Optimill F105 was manufactured in 2015. It features an X-axis travel of 550 mm, Y-axis travel of 305 mm, and Z-axis travel of 460 mm. The machine is equipped with a spindle power of 7.5 kW and a maximum spindle speed of 10,000 rpm. If you are looking to get high-quality machining capabilities, consider the Optimum Optimill F105 vertical machining centre we have for sale. Contact us for further details. • Rapid traverse (X/Y/Z): 10,000 mm/min • Work table size: 800 × 320 mm Bodpfozg Ecbox Af Aodh Technical Specification Taper Size BT 40

Condition: like new (used), Optimill MT100 in mint condition with various tools and 3-axis digital readout Bedpfxjzrlbhj Af Aodh X-axis travel 600 mm Y-axis travel 270 mm Z-axis travel 380 mm Vertical spindle: taper ISO 40 DIN 2080 Vertical spindle milling head rotation range X-Y plane 360° Vertical spindle milling head rotation range Z-X plane 360° Vertical spindle speed range 45 - 1600 min⁻¹ Number of vertical spindle speeds 11 Vertical spindle drawbar M16 Vertical spindle drive motor power normal operation 2.2 kW

Condition: used, Year of construction: 2006, x-travel 600 mm y-travel 270 mm z-travel 430 mm 630 mm Bsdpfx Afjv Sdz Rs Asdh table-size 1120 x 270 mm spindle turning speed range 45 - 1660 U/min spindle taper SK 40 control konventionell spindle motor 2,2 kW total power requirement 2,4 KVA weight of the machine ca. 1,35 t dimensions 1,8 x 1,4 x 1,8 m Machine equipped with: - Digital display - Machine light - Coolant system - Machine feet

Condition: used, Year of construction: 2017, Milling machine Optimium Optimil F 105 Bdsdpfx Afsyphnyj Aoh

Condition: good (used), Year of construction: 1970, pulling force - max. 2 t max. ram stroke 400 mm max. workpiece diameter 1000 mm workpiece weight 10 t clamping table 900 x 680 mm total power requirement 5,5 kW weight of the machine ca. 1,7 t Bjdpfx Afjz Ic A Eo Aedh dimensions of the machine ca. 1,3 x 1,2 x 1,5 m

Condition: ready for operation (used), Optimum lathe D330 x 1000 SG -Distance between centers: 1000 mm -Swinging diameter over bed: 330 mm -Swinging diameter over cross slide: approx. 190–200 mm Bdjdpfoztdv Tjx Af Aoh -Spindle bore: approx. 38 mm -Speed range: approx. 70 – 2000 rpm (stepped) -Feeds: longitudinal and cross, automatic -Thread cutting: Metric / Inch -Motor power: approx. 1.5 – 2.2 kW -Voltage: 400 V / 3 phases -Tailstock: MK3 -Spindle: MK5 -Work light -Three-jaw chuck -Multifix system with 1 steel holder -Machine feet -Chuck guard Dimensions: L x W x H 1.9 x 0.7 x 1.5 meters / Weight 700 kg

Year of construction: 2017, condition: ready for operation (used), Offered is an OptiMill MF 4V milling machine, almost new, 100h. Year of construction 2017, travel ranges X/Y/Z: 800mm/320mm/400mm, stepless spindle speed 9-6750rpm in 8 speed ranges, with electronic speed control, quill stroke: 127mm, 3-axis digital display DPA21, right/left rotation reversing switch, drilling depth stop, cross table X/Y 1244mm/230mm T-slot 16mm, chuck guard, coolant system, manual central lubrication, universal compressed-air tool clamping system ISO 40, stepless table feeds in X/Y, weight approx. 1200kg. Viewing is possible by arrangement. Bsdpjxyk Ucsfx Af Asdh

Condition: ready for operation (used), Year of construction: 2026, Optimum 275 N demonstration machine Model: Opti S 275 N Technical data: Cutting range 0 degrees, round: diameter 225 mm Cutting range 0 degrees: 245 x 180 mm / rectangle Cutting range 45 degrees, round: diameter 160 mm Cutting range 45 degrees: 160 x 160 mm / rectangle Bsdpfx Afsztcydo Aodh Cutting range 60 degrees, round: diameter 100 mm Cutting range 60 degrees: 100 x 100 mm / rectangle Saw bow lifting: manual Feed: steplessly adjustable Errors and omissions excepted.

Year of construction: 2024, condition: as good as new (ex-display), functionality: fully functional, machine/vehicle number: 04344, BRAND NEW Leistritz ZSE Maxx Series (27 / 40 / 50) – 48 L/D – 0 Hours – Factory Wrapped! Technical Specifications Manufacturer: Leistritz Extrusionstechnik GmbH Models Available: ZSE 50 Maxx ZSE 40 Maxx ZSE 27 Maxx Year of Manufacture: 2024 Condition: 100% Brand New (Zero operating hours, completely unused, still in original factory packaging/wrapping) L/D Ratio: 48 L/D (All units upgraded directly by Leistritz with brand-new complete barrel sets and new shafts) All machines are with side feeders. Description Available for immediate individual or package sale: Three (3) pristine, 2024 Leistritz ZSE Maxx Twin-Screw Extruders (Models: ZSE 50 Maxx, ZSE 40 Maxx, and ZSE 27 Maxx). These machines were originally dedicated laboratory units held by Leistritz. To meet high-specification production requirements, Leistritz directly upgraded all three machines to a 48 L/D ratio. These OEM upgrades included a brand-new, complete barrel set and brand-new shafts installed entirely by the factory. All three machines are in 100% brand-new condition with zero (0) operating hours. They remain fully wrapped and packed in their original factory delivery boxes—they have never been opened, touched, or commissioned since arriving from Leistritz. Bdjdpfx Asy Ufk Rjf Aoh Each machine is a complete, turnkey system supplied with its own high-end feeding setup, control architecture, and an extensive array of genuine auxiliary tools and spare parts. Scope of Delivery & Included Accessories (Per Machine) Feeding & Extrusion Setup Volumetric Feeder & Side Feeder (with dedicated side feeder trolley) Feed Ports Downstream & Die Attachments Strand Die Head, Die Plates, & Screen Carrier Plates Control & Electrical System Full Control Cabinet (including the Macrometer integrated into the operational panel) Complete set of Connection Cables & Cables for the Main Drive Comprehensive Spare Parts Kit for the control cabinet Vacuum & Degassing System Spare set of Screw Vacuum Pumps, Vacuum Hoses, & Vacuum Gauges Vacuum Pump Heating/Cooling Systems & Connection Hoses Sensors, Maintenance & Installation Melt Temperature & Melt Pressure Sensors Screw Mounting Device, Screw Extractors, & Cleaning Brushes Lifting Rods, Leveling Elements, & Corrosion Inhibitors Listing Summary for Buyers Available Models: ZSE 27 Maxx, ZSE 40 Maxx, ZSE 50 Maxx. Immediate Availability: Skip the massive factory lead times for a brand-new Leistritz line. OEM Guaranteed: All modifications and extensions to 48 L/D were performed officially by Leistritz. Pricing available for individual machines or as a complete 3-machine package. Photos of the packed crates and original documentation are available upon request.

Year of construction: 2009, condition: ready for operation (used), A CNC flatbed lathe Optimum is available. Swing diameter over bed/slide: 280mm/170mm, center distance: 700mm, spindle bore: 27mm, speed: 4000rpm, travel X/Z: 165mm/660mm, feed X/Z: 2m/min/3m/min, tool stations: 4, quill stroke: 85mm. Machine dimensions X/Y/Z: approx. 2000mm/750mm/1550mm, weight: approx. 450kg, control: Siemens Sinumerik. Documentation available. An on-site inspection is possible. Bjdpfeyyplisx Af Ajdh

Condition: new, Year of construction: 2026, Optimum Geared Metal Band Saw OPTIsaw SD 200V For demanding sawing work Item number: 3300205 DESCRIPTION Bdsdpfx Afjv Sg T No Ash Quiet operation Sturdy cast iron construction Saw frame lowering continuously adjustable via hydraulic cylinder with throttle valve Microswitch for automatic limit stop Clearly legible scale for angle adjustment Standard with high-quality bi-metal saw blade Saw blade tension adjustable from the front via handwheel Ball-bearing saw blade guide Robust machine base with large wheels and handy transport handle for easy relocation of the machine Adjustable material stop for series work Safety switch for the saw blade cover Fully equipped, allowing the user to work productively immediately after commissioning TECHNICAL DATA Dimensions and Weights Length (product) approx. 1382 mm Width without material stop approx. 434 mm Width/Depth (product) approx. 533 mm Width with Material stop approx. 533 mm Height (product) approx. 1200 mm Height of lower end position approx. 790 mm Height of upper end position approx. 1200 mm Weight (net) approx. 130 kg Work table height 530 mm Electrical data Drive motor power 0.75 kW Connection voltage 230 V Mains frequency 50 Hz Coolant pump motor power 100 W Machine data Saw blade speed(s) 26 – 80 m/min Saw blade length 2360 mm Saw blade width 19 mm Saw blade thickness 0.9 mm Cutting angle 0 – 45° Feed continuously adjustable Saw frame lift manually Cutting ranges Cutting range 0° round (solid material) 180 mm Cutting range 0° square (solid material) 180mm Cutting range 0° rectangular vertical (solid material) 180 x 240 / 50 x 300mm Cutting range +45° round (solid material) 110mm Cutting range +45° square (solid material) 150mm Cutting range +45° rectangular vertical (solid material) 110 x 170mm SCOPE OF DELIVERY Material stop Bi-metal saw blade Machine base

Condition: used, Drilling / Milling machine OPTIMUM type OPTI F 40 E Travel X: 500 mm Travel Y: 200 mm Spindle: Ø 80 mm Cone CM3 Spindle exit: 120 mm Spindle speed: from 95 to 3200 RPM Table size: Length 730 mm x Width 210 mm 2 speeds motor Motor power: 1,5 Kw Straight head Cross table Manual Descent Bedpfezw Ay Ssx Af Aedh Equipped with: 1 rotary vice Voltage: 380 V Dimensions (L x W x H): 1200 x 900 x 1400 mm Weight: approx 350 KG

Condition: excellent (used), Year of construction: 2020, functionality: fully functional, Vertical baling press Dixi 50 S, year of manufacture 2020, very good condition Technical data: Manufacturer: Maschinenfabrik Bermatingen Type: Dixi 50 S Year of manufacture: 2020 Drive power: 7.5 kW Pressing force: 50 t Pressing time: 23 s Feed opening: 1200 x 620 mm Feed height: 1000 mm Bale size: 1200 x 800 x 830 mm Bale weight: 300-350 kg Tying: manual Transport dimensions: 1600 x 1300 x 2200 mm Bodpez H I Epjfx Af Asdh Weight: 2300 kg Materials: PET bottles, HDPE/LDPE/PP, hollow containers, big bags, textiles, film, polystyrene, non-woven fabric, glass wool, etc. Note: The machine is in very good, like-new condition. The seals on the 2 cylinders for the retaining clamps have been replaced. It has been inspected and tested by us. You can find the video on our website or YouTube channel. The operating manual and EC declaration of conformity are available in German. Please note: All technical data refer to the manufacturer's specifications. We assume no liability for the information provided or any errors. The offers are subject to change, prior sale is reserved, and can be revoked at any time. Inspections are possible by arrangement. The sale is ex works, without warranty. Our payment terms are 100% prepayment.

Condition: excellent (used), Year of construction: 2019, functionality: fully functional, Vertical baling press Dixi 50 S, year of manufacture 2019, very good condition Technical data Manufacturer: Maschinenfabrik Bermatingen Type: Dixi 50 S Year of manufacture: 2019 Drive power: 7.5 kW Pressing force: 50 t Pressing time: 23 s Feed opening: 1200 x 620 mm Feed height: 1000 mm Bale size: 1200 x 800 x 830 mm Bale weight: 300-350 kg Tying: manual Transport dimensions: 1600 x 1300 x 2200 mm Weight: 2300 kg Materials: PET bottles, HDPE/LDPE/PP, hollow containers, big bags, textiles, film, Styrofoam, non-woven fabric, glass wool, etc. Bdodpfjz H I Evex Af Aoh The operating manual and EC declaration of conformity are available in German. Note: The machine is in very good condition. It has been inspected and tested by us. The video can be found on our website or our YouTube channel. Please note: All technical data refer to the manufacturer's specifications. We assume no liability for the information provided or any errors that may occur. The offers are non-binding, subject to prior sale and can be revoked at any time. Inspections are possible by arrangement. The sale is ex works, without warranty. Our payment terms are 100% prepayment.

Condition: excellent (used), Year of construction: 2010, functionality: fully functional, machine/vehicle number: 12647, travel distance X-axis: 510 mm, travel distance Y-axis: 410 mm, travel distance Z-axis: 460 mm, rapid traverse X-axis: 36 m/min, rapid traverse Y-axis: 36 m/min, rapid traverse Z-axis: 36 m/min, feed rate X-axis: 10 m/min, feed rate Y-axis: 10 m/min, feed rate Z-axis: 10 m/min, nominal power (apparent): 15 kVA, controller manufacturer: Heidenhain, controller model: TNC 620, workpiece weight (max.): 400 kg, total height: 2,350 mm, total length: 2,250 mm, total width: 1,850 mm, table width: 320 mm, table length: 600 mm, table load: 300 kg, overall weight: 3,000 kg, spindle speed (max.): 12,000 rpm, operating hours of spindle: 4,770 h, spindle motor power: 7,500 W, number of spindles: 1, number of slots in tool magazine: 16, tool weight: 6,000 g, input voltage: 400 V, type of input current: three-phase, Equipment: documentation/manual, rotational speed infinitely variable, LILIAN SVM-50 4-axis machining center Year of manufacture: 2010 Serial No. 12647 Travel distances (X x Y x Z): 510 x 410 x 460 mm with CNC rotary axis = 4th axis, with pneumatic clamping, 3-jaw chuck, counter bearing and electric hoist for lifting Control system: Heidenhain TNC620 including option for probing cycles and thread cutting without compensation chuck RS232 / RJ45 interfaces Dual-arm tool changer with 16 tools Direct drive spindle, oil-cooled, 12000 rpm SK40 DIN 69871 taper Rapid traverse X+Y+Z: 36 m/min Heidenhain glass scales X+Y+Z Heidenhain TS 440 probing system Handwheel Cabin with sliding door Work area lighting Coolant system Oil mist extraction Automatic central lubrication 3-color alarm and status indicator 400V/50Hz, 15 KVA Compressed air requirement: 6 bar Weight: 3000 kg Dimensions W x D x H: 1850 x 2250 x 2350 mm Control system operating time: 15120 hours Spindle operating time: 4770 hours Bdedozlcldjpfx Af Aeh Optional: Various clamping tools SK40 (milling chuck, threading chuck, drilling chuck, shrink-fit chucks, milling cutter holders, etc.) Allmatic machine vise

Condition: used, Year of construction: 2014, throat 180 mm quill stroke 80 mm Bdodpfxexbtrgs Af Ajh continious capacity 20 spindle taper MK 2 table-size 280 x 245 mm height of the machine ca. 1000 m column diameter 73 mm distance spindle /table max. 425 mm dimensions ca. 615 x 330 x 1015 mm weight ca. 60 kg incl. vice HM Müller HT100P

Condition: used, Year of construction: 2008, overall weight: 2,500 kg, load capacity: 50 kg, input voltage: 400 V, type of input current: three-phase, The APR 50 L-9 industrial robot is a gantry robot primarily designed for automating sheet metal bending on press brakes. It can also be used to operate other types of machines or workstations. Key specifications: Payload: 50 kg X-axis: 9 m Y-axis: 1270 mm Z-axis: 1530 mm Maximum workpiece dimension: 2000 mm Torque in the axis of rotation: 15 kgm Working height under the support: 2300 mm Number of positioning axes: 5 Gripper: vacuum, with suction cups The robot can pick up a sheet, feed it into the press, rotate/tilt it during subsequent bends, and place the finished part. It can also be "parked" to the side, allowing the press to operate manually. We have two identical robots available. The price in the advertisement is for one unit. The robots are in good working condition. The price stated in the advertisement is the net price, to which VAT must be added. The robots can be viewed in Starachowice at ul. Kwiatkowskiego 13. Please contact us by phone between 7:00 AM and 3:00 PM. Bedpfx Ajz Hlfmef Aodh

Condition: used, Year of construction: 2002, Drilling capacity: 25 mm, spindle mount: MK 3 Storage location: Nattheim Bdodpfx Aovvi Ausf Ajh

Condition: new, Precision guide and lead screw lathe Manufacturer: OPTIMUM Model: OPTiturn TZ 4V Art. No.: 3432245 Condition: New machine Center height: 200 mm Bedpeg Hkmrofx Af Ajdh Center distance: 800 mm Speed: 50 - 3,000 rpm Continuously adjustable via 2 gear stages with SIEMENS inverter-controlled variable speed drive Standard equipment: - 3-axis digital display DPA 32 - Digital speed display in the headstock - Fixed center MK 3 - Quick-change tool holder, size B - Turning tool holder BD - Reduction sleeve MK 6 / MK 3 - Fixed steady rest, ø 10 - 130 mm - Traveling steady rest, ø 10 - 100 mm - Coolant system - Chip tray, pull-out - LED machine light - Operating tools