CAT 40 Shell Mill HoldersFitz Rite flange mounting shell mill holder is a rugged design built for the high torque transmission required for your large diameter face mill cutters. Offering a large bearing surface, two driving keys and 4 fasteners the cutter is secure for applications from fine to rough milling. Our shell mill holders are designed to hold shell mill cutters for applications from fine to rough milling. These shell mill holders are produced to the AT3 standard,

Our stub arbor holders are produced from mill certified

Our V-Flange CAT 50 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

allows you to mount a tool holder to the machine spindle

as well as long reach tapered designs that allow milling in tighter

Our standard-length end mill holders feature a knurled shank for easy handling

deliver coolant right where you want it

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

Retention knobs are also available for purchase separately

We have standard style knobs for most machines in stock

The taper is manufactured to ASME B5

Collet nuts come in ER11