This 11-piece CAT40 lot combines tap holders and drill chuck holders — two of the most frequently used holder types in hole-making and threading operations on machining centers. Dedicated tapping holders provide the tension-compression float or rigid tap control needed for consistent thread quality, while drill chucks deliver reliable clamping for a range of drill shank sizes. Compared to using ER collet holders for both drilling and tapping, dedicated tap holders prevent tap breakage by accommodating the slight axial variation between machine feed rate and thread pitch — a critical advantage in blind-hole tapping or when running harder-to-tap materials. MakeMixed ModelCAT40 Year2010 or older Product #16407 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question About This Machine Eleven CAT40 holders focused on tapping and drilling — two operations that run constantly in any production shop. Having a dedicated set of tap holders and drill chucks means faster setups, better thread quality, and drills that stay put when the pressure is on. **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 Product Description: Includes Tap Holders Drill Chuck Holders CAT40 Taper 11 Pieces