Page 152 - Cobra-Carbide-2020-Catalog

CARBIDE DRILLS

Combined

COMBINED DRILL FORM B

REGULAR LENGTH
BENEFITS & FEATURES

• Centerdrill is a dual-purpose drill which includes a 60 angle for burnishing and a 120 flare for chamfering
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• This drill is used for the heaviest of work applications
COMBINED DRILL FORM B - FRACTION

Drill Dia (d1) Drill Dia (d2) Drill Length Body Dia OAL Uncoated
1.00 2.12 1.30 4.00 35.50 25950
1.25 2.65 1.60 5.00 40.00 25952
1.60 3.35 2.00 6.30 45.00 25954
2.00 4.25 2.50 8.00 50.00 25956
2.50 5.30 3.10 10.00 56.00 25958
3.15 6.70 3.90 11.20 60.00 25960
4.00 8.50 5.00 14.00 67.00 25962
5.00 10.60 6.30 18.00 75.00 25964

DRILLS

COMBINED DRILL FORM R

REGULAR LENGTH

BENEFITS & FEATURES
• Special purpose drill for producing radius centre holes.
• This drill is used for the heaviest of work applications.

COMBINED DRILL FORM R - FRACTION

Radius R
Drill Dia (d1) Drill Dia (d2) Drill Length OAL Uncoated
MAX MIN
1.00 3.15 3.00 31.50 3.15 2.50 25966
1.25 3.15 3.35 31.50 4.00 3.15 25968
1.60 4.00 4.25 35.50 5.00 4.00 25970
2.00 5.00 5.30 40.00 6.30 5.00 25972
2.50 6.30 6.70 45.00 8.00 6.30 25974
3.15 8.00 8.50 50.00 10.00 8.00 25976
4.00 10.00 10.60 56.00 12.50 10.00 25978
5.00 12.50 13.20 63.00 16.00 12.50 25980

152 www.cobracarbide.com / Cell: 951-280-4700
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