1、Fast Drilling Speed: Precise grinding grooves, high efficiency and flexibility, direct chip removal and smooth chip removal, beautiful and delicate, effective, labor saving, and fast drilling speed 2、Integral One Time Forming: This is an integral one time forming reamer, with stable sizes, accuracy hardening, and durability 3、Application: Used for stainless steel, carbon steel, cast iron, die steel, alloy steel, tool steel, non ferrous metal materials 4、Wide Applications: This is a reamer, which is widely used for light cutting, repair work, destocking or only for enlarging holes 5、Universal Shank Type: This is a reamer with glossy surface, wide uses, universal shank type, and high grinding accuracy