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Cobalt Aircraft Extension Drills - Letter Sizes - 6" Overall Length

Cobalt Aircraft Extension Drills - Letter Sizes - 6" Overall Length

National Aerospace Standard 907,
Type J Cobalt Extension Drill Cobalt HSS, Surface Treated, 135º Split Point.

Made to NAS 907 Type J specifications, these cobalt extension drills are used for drilling in tough,high tensile strength materials like stainless steels, titanium and inconel. They are made of cobalt high speed steel,with heavy duty flute construction and 135° split point.

Letter Sizes - 6" Overall Length

Qty	Diameter Number	Part Number	Decimal Equivalent Inches	Flute Length Inches	Package Quantity	Price Each
	G	06-401	.2610	2-7/8	12	$5.99
	F	06-402	.2570	2-7/8	12	$5.77
	D	06-403	.2460	2-3/4	12	$4.00
	J	06-404	.2770	2-7/8	12	$6.47
	K	06-405	.2810	2-15/16	12	$6.80
	Q	06-406	.3320	3-7/16	6	$5.76
	U	06-407	.3680	3-5/8	6	$7.98
	C	06-408	.2420	2-3/4	12	$6.38
	M	06-409	.2950	3-1/46	6	$6.95
	N	06-410	.3020	3-1/16	6	$6.95
	O	06-411	.3160	3-3/16	6	$5.29
	H	06-412	.2660	2-7/8	12	$6.06
	I	06-413	.2720	2-7/8	12	$6.47
	B	06-418	.2380	2-3/4	12	$6.38

Aircraft Tools • Cobalt Drills • High Speed Steel Reamers • Carbide Burs • Screwdriver Bits • Paint Cutters • Cleco Fasteners • Double Margin Drills • Countersinks • Surface Conditioning Disc • Nova Pneumatic Aircraft Tools • Aviation and Aerospace Tools