Cobalt Aircraft Type D Drills

National Aerospace Standard 907,
Type D Cobalt Jobbers Length Drill

Cobalt Drill Bits - Made of cobalt high speed steel and designed for handling the higher thrust loads required when drilling tough high tensile and heat resistant alloy steels. Jobber length with short flute, heavy webb and 135° P9 split point, gives the tool more rigidity, eliminating vibration and flexing, resulting in a more accurate hole and longer tool life, making it an ideal tool for portable drilling applications. High polished steam oxide flutes improve the evacuation of chips and prevent abrasion at cutting edge.

Other Sizes Available, Price On Application

Diameter Size	Part Number	Decimal Equivalent Inches	Flute Length Inches	Overall Length Inches	Package Quantity	Price Each
40	01-040D	.0980	13/16	2-3/8	12	$0.93
30	01-030D	.1285	15/16	2-3/4	12	$1.19
21	01-021D	.1590	1-1/16	3-1/4	12	$1.25
13	01-013D	.0850	1-1/8	3-1/2	12	$1.43
10	01-010D	.1935	1-3/16	3-5/8	12	$1.58
1/4	02-073D	.2500	1-3/8	4	12	$2.00

Drill Stops