RBC 4096739-284 2-1/2” HSS Single Flute Countersink 90° USA Used

Marking on shank reads RBC 4096739-284 USA 0922B. Large 2-1/2” single-flute countersink / chamfer cutter. Shows shop wear, staining, and used cutting edges. Exact angle/material grade not guaranteed; buyer should verify from photos and measurements.

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