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HSS step drill bits

HSS step drill bits
Feature highlights：

Fully ground HSS step drill bit

step angle 90 degree / 180 degree step drill bits

Fully ground drill bits with bright finish
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specification

HSS step drill bits

step drill bit made of high speed steel for longer life

Drill point: 118 degree with step angle 90 degree / 180 degree step drill bit

The step drill bit is ideal for drill and countersink or counterbore in one operation, clearance fo the head and body of various types of screws

Drill bits manufacturer supply directly, offers competitive price with quick reponse and excellent service.

HSS step drill bits

Thread   sizeOverall lengthFlute length
M39357
M411775
M513387
M614394
M8169114
M10198135
NO.43-3/4"2-1/2"
NO.53-7/8"2-5/8"
NO.64"2-3/4"
NO.84-1/4"2-15/16"
NO.104-3/4"3-7/16"
1/2"5-1/4"3-7/8"
5/16"6"4-1/2"
3/8"7-1/8"5-3/16"
7/16"7-5/8"5-5/8"
1/2"5-1/8"3-1/4"