Test BarsFitz Rite test bars are made in the USA and are held to the highest standards for checking the accuracy of your CNC machining centers' spindle. They are manufactured from mill certified hardened alloy steel. The shank is held concentric to the taper within one tenth (TIR . 0001"). The taper is manufactured to ASME B5. 50 standards and precision ground to meet AT 3 tolerance. Test bars require a retention knob fitted to your machine specifications.

50" you are sure to find the high performance shell mill holder you need

The body is hardened to 28-32 RC to allow for easy machinability and post flame hardening for those special pockets and features

Additional inserts and screws available for purchase

please call us at (800) 835-2643

Manufactured in accordance with AISI / ASME B5

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

as well as TG100

Stub arbors are keyed for positive drive and the face is perpendicular to the arbor within

Our ER20 rigid tap collets are for use with tap sizes ranging from #0 to ½”

are available for immediate shipment

Fitz-Rite end mill holders are precision ground to exceed industry standards

ER20 straight shank collet chuck extension are available with projections of 4