This 12-piece CAT40 tool holder lot covers the three most commonly needed holder types — ER collet holders, drill chuck holders, and end mill holders — providing a well-rounded tooling package for CAT40 machining centers. At 12 pieces, the lot is large enough to support multi-operation setups without requiring holder swaps between operations. A lot that combines ER collets, drill chucks, and end mill holders serves shops running mixed work better than a single-type lot, as each holder style brings specific advantages: ER for light-duty versatility, drill chucks for large-diameter hole work, and end mill holders for high-torque side milling with weldon-shank cutters. MakeMixed ModelCAT40 Year2010 or older Product #16383 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question About This Machine Twelve CAT40 holders covering ER collets, drill chucks, and end mills — the three-tool combination that handles the vast majority of what any machining center gets asked to do. At 12 pieces, this lot has the depth to keep a machine productive across multiple jobs without reshuffling tooling. **All descriptions and specifications are preliminary and must be verified prior to purchase.** Live Tooling / Milling Specifications Spindle Second Spindle Tool Changer Turret Control Tailstock / Steadyrest Options Machine Used On: CAT40 (ANSI B5.50 #40 Taper) CNC Vertical and Horizontal Machining Centers - Haas, Fadal, Hurco and other CAT40-spindle mills Product Description: Includes ER Collet Holders Drill Chuck Holders End Mill Holders CAT40 Taper 12 Pieces Mixed-manufacturer lot ANSI B5.50 #40 (CAT-V40) taper Retention knob / pull stud style varies by machine - not verified Buyer to confirm all specifications before purchasing.