This second 11-piece lot of CAT40 ER collet chuck holders provides the same versatile toolholding capability as a first set — ideal for shops equipping a newly acquired machining center or building out a backup holder inventory to keep production running during toolholder maintenance. ER collet systems are the most common choice for general-purpose milling due to their broad size range and consistent runout performance. Having duplicate holder sets across machines standardizes setup procedures and reduces the time operators spend hunting for the right holder size — a practical advantage in high-volume or multi-shift production environments where toolholder availability directly affects machine uptime. MakeMixed ModelCAT40 Year2010 or older Product #16385 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question About This Machine Another eleven-piece CAT40 ER collet chuck lot — the right size to stock a second machine or supplement an existing holder library without overpaying for a larger set. ER collet holders are the first thing a machining center operator reaches for, and eleven of them make a real difference in how smoothly a shop runs. **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 ER Collet Chucks CAT40 Taper 11 Pieces