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aircraft extension drill bit

aircraft extension drill bit
Feature highlights：

Aircraft extension drills

135 degree quick-cut tip drill bits

Drill bits especially used for extra reach
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specification

Aircraft extension drills

Aircraft extension drills are surface treated, high spped steel with 135 degree quick-cut points that will not walk or wander.

Extension drills are used in areas where extra reach is important

Material: HSS

inchOverall lengthFlute length
inchOverall lengthFlute length
1/812"8"
1/166”7/8
9/6412"8"
5/646”1
5/3212"8"
3/326”1-1/4
11/6412"8"
7/646”1-1/21
3/1612"8"
1/86”1-5/8
13/6412"8"
9/646”1-3/4
7/3212"8"
5/326”2
15/6412"8"
11/646”2-1/8
1/412"8"
3/166”2-5/16
17/6412"8"
13/646”2-7/16
9/3212"8"
7/326”2-1/2
19/6412"8"
15/8646”2-5/8
5/1612"8"
1/46”2-3/4
21/6412"8"
19/646”2-7/8
11/3212"8"
9/326”2-15/16
23/6412"8"
19/646”3-1/16
3/812"8"
5/166”3-3/16
25/6412"8"
21/646”3-5/16
13/3212"8"
11/326”3-7/16
27/6412"8"
23/646”3-1/2
7/1612"8"
3/86”3-5/8
29/6412"8"



15/3212"8"



31/6412"8"



1/212"8"