U Drill 38mm ALUMINIUM CUTTING INSERT calipers and dividers have a

calipers and dividers have a spring joint for precision settings

It ranges from 16 mm to 40 mm because the shank's minor diameter is compatible with a standard collet chuck

This is a general standard to choose Morse taper size for drills (it may change with different DIN standards or special sizes)

The flute Length of Ballnose is double the diameter

U Drill 38mm ALUMINIUM CUTTING INSERT calipers and dividers have aPlease choose the LXD of drill size, as it can change drilling capacity, which is the most essential part of drilling. All sizes are available in 2D, 3D, 4D, 5D, and with Suitable Inserts: SPMG and WCMX. Please check from the drop down menu.