Heavy Duty CAT40 Side Lock End Mill Holder 1.0 Inch Shank 3.0 Inch Length Weldon Style Precision Ground Carbon Steel TIR 0.0002 Inch 25000 RPM USA Made

CAT40 End Mill Holder, 1.0in Shank, 3in Length
✔️ Single-piece CAT40 end mill holder, Weldon style, TIR 0.0002 in

Designed for CNC milling centers, this heavy‑duty CAT40 end mill holder is a single-unit clamp that fits 1.0 in shank tooling with a 3.0 in length. Built for high RPM and tight runout, it’s ideal for metalworking tasks in aluminum, steel, and beyond.

✅ Shank size: 1.0 in (25.4 mm) diameter
✅ Length: 3.0 in (76.2 mm) overall
✅ Taper: CAT40, Weldon style side lock
✅ Runout tolerance: 0.0002 in (0.0051 mm) TIR
✅ Material: carbon steel, precision ground
✅ RPM rating: up to 25,000 RPM
✅ Made in USA

💡 What is a CAT40 end mill holder used for in CNC milling? This handy explanation helps you understand its role. - Keeps end mills securely aligned in CAT40 spindles to reduce runout - Side lock Weldon design minimizes tool slip during heavy cuts - Supports high RPM operation up to 25,000 with tight TIR for accuracy