Piloted Double Margin Drills NAS 937

Jobber Length Cobalt 135º Split Pint

Designed for close tolerance drilling in titanium, stainless, heat treated material and aluminum alloys. When the drill point penetrates enough for the second margin to contact the wall of the hole, the point is stabiized and true cylindrical geometry is established. Smooth accurate holes are produced and reaming can often be eliminated.

Part Number	DRILL SIZE	DECIMAL EQUIVALENT INCHES	PILOT DIAMETER	FLUTE LENGTH INCHES	OVERALL LENGTH INCHES	PILOT LENGTH INCHES	Package Quantity	Price Each
13-100	#30x#40	.1285	.0980	1-5/8	2-3/4	1/4	6	$3.93
13-106	#27x#40	.1440	.0980	1-7/8	3	1/4	6	$4.31
13-114	#21x#40	.1590	.0980	2-5/16	3-1/4	1/4	6	$4.20
13-107	#21x#30	.1590	.1285	2-1/8	3-1/4	1/4	6	$4.20
13-117	#20x#40	.1610	.0980	2-1/8	3-1/4	1/4	6	$4.41
13-115	#20x#30	.1610	.1285	2-1/8	3-1/4	1/4	6	$4.41
13-118	#16x#40	.1770	.0980	2-3/16	3-3/8	1/4	6	$4.41
13-119	#16x#30	.1770	.1285	2-3/16	3-3/8	1/4	6	$4.41
13-121	#13x#40	.1850	.0980	2-5/16	3-1/2	1/4	6	$4.41
13-128	#13x#30	.1850	.1285	2-5/16	3-1/2	1/4	6	$4.41
13-135	#13x#21	.1850	.1590	2-5/16	3-1/2	1/4	6	$4.41
13-142	#12x#40	.1890	.0980	2-5/16	3-1/2	1/4	6	$4.83
13-149	#12x#30	.1890	.1285	2-5/16	3-1/2	1/4	6	$4.83
13-156	#12x#21	.1890	.1590	2-5/16	3-1/2	1/4	6	$4.83
13-170	#11x#30	.1910	.1285	2-5/16	3-1/2	1/4	6	$4.83
13-163	#11x#21	.1910	.1590	2-5/16	3-1/2	1/4	6	$4.83
13-184	#10x#40	.1935	.0980	2-3/4	3-5/8	1/4	6	$4.83
13-177	#10x#30	.1935	.1285	2-7/16	3-5/8	1/4	6	$4.83
13-191	#10x#21	.1935	.1590	2-3/4	3-5/8	1/4	6	$4.83
13-205	d x #13	.2460	.1850	2-3/4	4	5/16	6	$5.25
13-198	d x 3/16	.2460	.1875	2-3/4	4	5/16	6	$5.25
13-230	1/4x#30	.2500	.1285	2-3/4	4	5/16	6	$5.36
13-327	1/4x#21	.2500	.1590	2-3/4	4	5/16	6	$5.36
13-223	1/4x#11	.2500	.1910	2-3/4	4	5/16	6	$5.36
13-216	1/4x#10	.2500	.1935	2-3/4	4	5/16	6	$5.36
13-244	5/16x1/4	.3125	.2500	3-1/16	4	5/16	6	$6.30
13-250	3/8x1/4	.3750	.2500	3-5/8	5	3/8	6	$10.66
13-255	3/8x5/16	.3750	.3125	3-5/8	5	3/8	6	$10.66

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