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alloy steel
Fitz-Rite end mill holders are precision ground to exceed industry standards with tapers held to AT-3 and bores concentric to the taper within
50" you are sure to find the high performance shell mill holder you need
Most common sizes are available for immediate shipment
and the best wear and corrosion resistance on the market
CAT 40 Blanks chamfer tool alloy steelOur V Flange CAT 40 blanks are machined from mill certified AISI 4150 preheated treated alloy steel. The body is hardened to 28 32 RC to allow for easy machinability and post flame hardening for those special pockets and features. Manufactured in accordance with ASME B5. 50 standard (Per ISO 1947) the 7 24 taper is hardened to 56 60 RC and precision ground to AT 3 standards; providing optimal radial repetitive accuracy to your CNC machining center's