ICS Cutting Tools

EXTENSION DRILLS
 
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Extension Drill - Metric
Metric Extension Drills are designed for drilling of holes in inaccessible places which cannot be reached with standard length drills. Various combinations of diameter and overall lengths are available.
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SIZE DEC. EQUIV FLUTE LENGTH OVERALL LENGTH
2.50 .0984 1-3/8 12
3.00 .1181 1-5/8 12
3.50 .1378 2 12
4.00 .1575 2 12
4.50 .1772 2-5/16 12
5.00 .1969 2-1/2 12
5.50 .2165 2-1/2 12
6.00 .2362 2-3/4 12
6.50 .2560 2-15/16 12
7.00 .2756 2-15/16 12
7.50 .2953 3-3/16 12
8.00 .3150 3-3/16 12
8.50 .3346 3-7/16 12
9.00 .3543 3-5/8 12
9.50 .3740 3-5/8 12
10.00 .3937 3-7/8 12
10.50 .4134 4-1/16 12
11.00 .4331 4-1/16 12
11.50 .4528 4-5/16 12
12.00 .4724 4-5/16 12
12.50 .4921 4-1/2 12
13.00 .5118 4-13/16 12
13.50 .5315 4-13/16 12
14.00 .5512 4-13/16 12
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Extension Drill - Carbide Tipped
Carbide Tipped Extension Drills are designed for drilling of holes in inaccessible places which cannot be reached with standard length drills. Special Carbide/Cobalt is for multi-purpose drilling. Can drill through hardened steel, most alloys, tile, ceramics, plastics, and many other difficult materials.
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SIZE DEC. EQUIV FLUTE LENGTH OVERALL LENGTH
1/8 .1250 1-5/8 12
3/16 .1875 2-5/16 12
1/4 .2500 2-3/4 12
5/16 .3125 3-3/16 12
3/8 .3750 3-5/8 12
7/16 .4375 4-1/16 12
1/2 .5000 4-1/2 12
 

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