Grizzly 777104 Glanze Turning Tool Set, 1/2-Inch This 1/2-Inch glaze mini turning tool set is a precision set for precision turning tools have been machined to exacting specifications and feature r Supplied in a fitted case They all use the same diamond inserts and what-Inch more all 4 corners of the diamonds are utilized between the bits Tools have been machined to exacting specifications and feature rugged tool steel bodies with black oxide finish