BIG KAISER RA HOLDER

Quick Correction of Spindle Runout by Tool Holder Features Runout accuracy of machine tool spindles may be decreased after extended use. Long drilling or reaming operations on such machines leads to variations in precision, shortened tool life, etc. The RA Holder is an effective countermeasure to these problems. • Uniform hole diameter • Improves surface roughness • Extends tool life

Simple Design & Easy Adjustment

Runout Adjustment Screw (right & left)

Runout Adjustment Ring

(mark)

Lock Bolt

1. Rotate the runout adjustment screw and align the (mark) with the peak runout 2. Fix the runout adjustment ring by tightening (3) lock bolts 3. Adjust runout by rotating the runout adjustment screw

RUNOUT WITHOUT RA HOLDER 20μm

RUNOUT WITH RA HOLDER 2μm

3

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