Carmex Internal UN Threadmill Insert 21mm / 16 TPI / 21 I 16 UN MT7 Drill Type_Ball Nose Endmill M12 x 30mm - 4

M12 x 30mm - 4 PCS

) – 1-1/2"

🔹 Coating Choices: -A

it provides excellent wear resistance

Its precision-ground geometry

Carmex Internal UN Threadmill Insert 21mm / 16 TPI / 21 I 16 UN MT7 Drill Type_Ball Nose Endmill M12 x 30mm - 4Mill Thread Insert UN 16 TPI, Internal The Carmex 21 I 16 UN MT7 is a precision internal thread milling insert for cutting Unified (UN) threads with 16 TPI. Optimized for CNC milling with helical interpolation, it produces accurate and smooth thread forms with consistent repeatability and excellent surface finish. Constructed from MT7 fine grain carbide, the insert provides exceptional wear resistance, toughness, and heat stability. The size 21 body