Carmex Carbide Threading Insert - ISO/METRIC - TiAlN Coated - 21I2.5ISO Spot Drill The left-hand flute paired with

The left-hand flute paired with right-hand cutting delivers stable cutting action and clean holes

repeatable checks that align with standard threading specifications

Secure ER20 compatibility: Provides reliable grip on round shanks within an ER20 chuck

plan for the 24–48 hour despatch window to ensure you receive exactly the size and configuration you need

This reamer is ideal for finishing holes in steel and alloy components where precise fit and surface quality matter

Carmex Carbide Threading Insert - ISO/METRIC - TiAlN Coated - 21I2.5ISO Spot Drill The left-hand flute paired withA versatile collection of threading inserts, covering all common thread profiles. The inserts are available in 5 different lengths (from 12 mm to 40 mm), and depending on the length can handle pitches from 0. 5 mm 32 TPI to 6. 0 mm 4 TPI. Features: The inserts are double sided, i. e. have two cutting edges (except for BSPT NPT NPTF American Buttress API RD) For many thread profiles, the same insert can machine both internal & external applications