VEVOR 4Pcs CAT40 Tool Holder ER16 Collet Chuck Set length 100mm Chuck Tool Holder Set Mill Holder for CNC Engraving Machine Milling Lathe(4Pcs CAT40 ER16 100mm) About this item ?DEPENDABLE COMBINATION?-This CAT40 tool holder set comes with 4 collet chucks, which can offer stable performance to meet your various requirements and for your convenient replacement. Gage Length: 4?/100mm. ?DURABLE DESIGN?-High precision face mill holder is integrated for a single piece construction. The high-grade 40Cr frame ensures a better overall balance of tool holder assembly. Durable and long-lasting. Polished body to be smooth and rust-resistant. ?EXCELLENT PERFORMANCE?-Our CAT40 holder features high accuracy and high speed, sure to be your good helper of machining. Accuracy: 0.00012-0.0002 inch (0.003-0.005mm); Speed: 20000Rpm. ?SIMPLE OPERATION?-4 CAT40 precision collet chuck. Easy to use. Fully ground flange and V-groove says it is easy on tool changers for less spindle and changer maintenance. ?HIGHLY VERSATILE?This4-piece set CAT40 tool holder is quite popular in high-precision machining applications, such as drilling, milling, coolant thru, and high-speed applications. Specifications:- Length: 31.0 in, Width: 20.0 in, Height: 9.0 in (description exceeds maximum possible length)