16 ER/IR 12W External/Internal Threading CRM Insert pack of 10 Size:EXTERNAL U Drills can be used

U Drills can be used directly on the surface without a centre hole

hrc upto 45 with coolant

Radius gauges require a bright light behind the object to be measured

The Yuzuki® Vernier Caliper with fine adjustments is a versatile measuring tool crafted for professionals

Centre square finds and marks the exact centre of round

16 ER/IR 12W External/Internal Threading CRM Insert pack of 10 Size:EXTERNAL U Drills can be used16 ER IR 12W External Internal Threading CRM Insert pack of 10 SELECT EXTERNAL OR INTERNAL CAREFULLY. CRM EXTERNAL HAS A YELLOW BOX, AND INTERNAL HAS A BLUE BOX High profile accuracy. Parameters are mentioned on the box's back side suitable for mostly steel grades, stainless steel grades Prevents chip curling, thus less tool breakage.