N9MT11T3 – 5/16 X 18 UNC – Combined Spot & Chamfer

£39.78

Combined Spotting & Chamfering 145 degrees/90 degrees

2 cutting edges

5/16″ X 18 UNC  Tap size

Reduces process to one operation – shortens cycle time

Better hole accuracy when drilling with high performance drills

Universal Grade for all materials