5 Pcs 1/4in Indexable Cemented Carbide Insert Turning Tool Bit for Lathe Machining Turning Features: Used for turning, facing, boring, chamfering, threading and V-grooving. Applicable to all kinds of metal lathes. Forged steel with indexable tungsten carbide tip. The blade can be rotated to a new cutting edge without changing the position of the tool holder (each has three sides).  C6 carbide tip with chipbreaker groove. Made of materials, durable and practical. Mechanical clamping lathe tool can avoid stress and crack of carbide blade during high temperature welding, and the tool handle can be used many times. Mechanical clamping lathe tools are generally clamped by screw and pressure plate, and equipped with indexable blades. When the blade is blunt, it can be rotated and used again, and the time of stopping and changing the blade is short. Specification: Type: 2-piece "A" 0 degree for turning, facing, boring and chamfering (including right and left hand versions) 2-piece "B" 15 degrees for turning, facing, boring and chamfering (including left and right versions) 1-piece "E" 30 degree for turning, veneering, boring, chamfering, threading and V-grooving Package List:  5 x Carbide Insert 1 x Hex Wrench 5 x Screw