The left-hand spiral flute paired with right-hand cutting provides efficient material removal and clean hole finishes
this arbor supports a versatile speed range from 15
The 4-flute geometry supports faster material removal and better surface finish
5 micron run-out for exceptional precision: Achieve consistent concentricity across your tools
and hobbyists who need precise bore sizing and dependable performance in standard-length tooling
Carmex Thread Turning Internal Insert - Stub Acme - Right Hand - 16IR12STACMEBMA Die & Mould Collet Chucks The left-hand spiral flute pairedCarmex Thread Turning Internal Insert Stub Acme, Right Hand, 16IR12STACMEBMA is a highquality internal threading insert designed for a wide range of applications. Part of Carmex's globally recognized range, this laydown triangular insert provides a practical solution for many thread standards in a compact, interchangeable form. Whether you're an engineer, machinist, buyer, or hobbyist, this insert handles basic to demanding thread turning tasks,