Specifications

Material^$carbon steel 60^#Sizes^$3/8",1/2",5/8",3/4",7/8",1",1-1/4"^#Surface available^$polish, tin-coated or black finished^#Packing^$Card +double blister^#

Features

cutting edges^$9 different cutting edges are designed for drilling, milling, routing and channeling, Amazing directional control

^#speed^$ 2 times faster than spade bits^#patent^$Our patent number in China, UK and patent application number in USA:

a) Practicality in China: 03203524.1

b) Outlook design in China: 02309029.4

c) UK patent: 0200694.8

d) Patent application number in USA: 10/365739^#