CAT40 (CT40) Ø 5/8" (0.625") end mill holder, weldon x 1.75" gage length, G2.5 balancing

The EM0625T40iH1-75 is a high-quality CAT40 (CT40) end mill holder engineered to ANSI B5.50 standards for unmatched precision. Designed for Ø 5/8” (0.625”) end mills, it incorporates a Weldon-style clamping system for reliable tool retention and vibration reduction.

Its 1.75-inch gage length makes it ideal for applications requiring shorter tool overhang, enhancing rigidity and performance. Constructed from alloyed case-hardened steel and treated with a blackened and bright finish, this toolholder offers exceptional durability and resistance to wear. Balanced to G2.5 at 25,000 RPM, it ensures smooth operation even at high speeds. Additional specifications include a taper tolerance of AT3, a hardness range of HRC 58-62, and a carbon depth of 0.8±0.2mm for extended service life. The surface roughness of Ra 0.005mm guarantees excellent precision, and AD cooling capability supports efficient machining.

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