Carmex Thread Turning Internal Insert - UNJ (UNJC UNJF UNJEF UNJS) - Left Hand - 16IL8UNJBMA FMH FLH FHH S&E A&NF M&D it uses a left-hand spiral

it uses a left-hand spiral flute paired with right-hand cutting for efficient material removal and a clean bore

helping maintain accuracy and concentricity during reaming

aiding in maintaining bore quality across multiple passes

while the precise gripping action supports accurate thread formation for routine and demanding applications

and maintenance teams that need a reliable quick-check to confirm parts meet the M20 x 0

Carmex Thread Turning Internal Insert - UNJ (UNJC UNJF UNJEF UNJS) - Left Hand - 16IL8UNJBMA FMH FLH FHH S&E A&NF M&D it uses a left-hand spiralCarmex Thread Turning Internal Insert for UNJ threading (UNJC UNJF UNJEF UNJS) Left Hand. Model: 16IL8UNJBMA. This precision insert features a compact laydown triangular geometry and a central mounting hole, designed for secure seating in compatible holders during internal thread turning. Built to cover a wide range of thread standards and applicationsfrom simple to demandingthis insert helps you complete projects with consistency and reliability,