Heavy Duty Cobalt Drill Bits

QC91CO - Cobalt HSS, Wide Land Parabolic Flute Design, Bronze Color Oxide, 135° Split Point

Especially effective in deep hole drilling; unique flute form produces closer tolerances due to improved chip and coolant flow and higher torsional rigidity. 135° self centering split point reduces thrust. Taper length (longer flute and overall length) improves reach and deep hole drilling capability. Used for drilling high alloy steels, titanium, Inconel, PH stainless and other difficult to machine materials.

Diameter, Inch	Flute Length, Inch	Overall Length, Inch	Pkg Qty	Price Pkg.	QC91CO EDP #	Purchase Online
0.0625	1.750	3.000	12	$239.04	46557804	Buy Now
0.0781	2.000	3.750	12	$244.56	46557805	Buy Now
0.0938	2.250	4.250	12	$286.08	46557806	Buy Now
0.1094	2.500	4.625	12	$368.40	46557807	Buy Now
0.1250	2.750	5.125	12	$368.64	46557808	Buy Now
0.1406	3.000	5.375	12	$504.96	46557809	Buy Now
0.1562	3.000	5.375	12	$449.52	46557810	Buy Now
0.1719	3.375	5.750	12	$536.64	46557811	Buy Now
0.1875	3.375	5.750	12	$444.72	46557812	Buy Now
0.2031	3.625	6.000	12	$611.04	46557813	Buy Now
0.2188	3.625	6.000	12	$640.80	46557814	Buy Now
0.2344	3.750	6.125	12	$664.80	46557815	Buy Now
0.2500	3.750	6.125	12	$528.96	46557816	Buy Now
0.2656	3.875	6.250	6	$355.20	46557817	Buy Now
0.2812	3.875	6.250	6	$320.40	46557818	Buy Now
0.2969	4.000	6.375	6	$381.48	46557819	Buy Now
0.3125	4.000	6.375	6	$315.84	46557820	Buy Now
0.3281	4.125	6.500	6	$390.84	46557821	Buy Now
0.3438	4.125	6.500	6	$362.64	46557822	Buy Now
0.3594	4.250	6.750	6	$444.12	46557823	Buy Now
0.3750	4.250	6.750	6	$428.16	46557824	Buy Now
0.3906	4.375	7.000	6	$472.08	46557825	Buy Now
0.4062	4.375	7.000	6	$451.68	46557826	Buy Now
0.4219	4.625	7.250	6	$501.36	46557827	Buy Now
0.4375	4.625	7.250	6	$492.72	46557828	Buy Now
0.4531	4.750	7.500	6	$566.76	46557829	Buy Now
0.4688	4.750	7.500	6	$577.44	46557830	Buy Now
0.4840	4.750	7.750	6	$657.24	46557831	Buy Now
0.5000	4.750	7.750	6	$605.76	46557832	Buy Now

Cobalt Taper Length Drill Bits