This lot of ten CAT50 tool holders is a versatile, reliable set for outfitting the tool carousel of a large-frame vertical or horizontal machining center. The group includes ER collet chucks for flexible gripping of round-shank cutters, a threaded-nose holder for secure collet clamping, and an arbor with a hex retention bolt for positive cutter mounting. CAT50 (also called CV50 or V-Flange 50) is the heavy-duty 50-taper standard used on high-torque machining centers from builders such as Haas, Mazak, Okuma, and Mori Seiki, and it is valued for its rigidity in roughing and heavy cutting. Buying a matched group of holders together saves the time of sourcing pieces one at a time and gets a spindle production-ready faster. Compared with lighter 40-taper tooling such as CAT40, these CAT50 holders deliver a larger gauge diameter and greater spindle contact, translating into more clamping force, better damping, and the rigidity needed for aggressive material removal on large parts. The ER collet holders keep changeovers fast across many tool diameters while the arbor handles larger mounted cutters. Bought as a used set, this tooling keeps a machining center fully equipped and ready for work. MakeVarious ModelCAT50 Year2010 or older Product #16372 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question About This Machine Cover flexible collet work and mounted cutters from one buy - ten CAT50 holders including ER chucks and a positively-retained arbor that drop into your machining center ready to run. It is a simple, dependable way to build out a 50-taper carousel with versatile, field-proven tooling instead of chasing holders one at a time. **All descriptions and specifications are preliminary and must be confirmed by buyer prior to purchase.** Live Tooling / Milling Specifications Spindle Second Spindle Tool Changer Turret Control Tailstock / Steadyrest Options Machine Used On: CAT50 (V-Flange 50 Taper) CNC Vertical & Horizontal Machining Centers Product Description: (10) CAT50 Tool Holders ER Collet Chucks Threaded-Nose Holder Arbor with Hex Retention Bolt CAT50 / V-Flange 50 (ANSI B5.50) taper shank ER collet chucks accept standard ER collets for round-shank tooling Threaded nose for positive collet nut clamping Arbor accepts mounted cutters, secured by hex retention bolt Requires standard 50-taper retention knobs / pull studs Lot quantity: 10 holders, mixed styles Buyer to confirm all specifications before purchasing.