Product Description
Each of these 115 cobalt drill bits comes organized in a metal indexed storage case for easy transport to your worksite. These cobalt drill bits retain their hardness up to 1000 degrees Fahrenheit making them ideal for drilling cast iron, heat-treated steel, stainless steel and other hard materials. With aggressive 135 degree tips, these cobalt drills bits not only last longer but also cut faster than standard high speed steel bits.

Cobalt steel bits last longer, cut faster than high speed steel
29 fractional sizes: 1/16 in. to 1/2 in. by 64ths
26 letter sizes: A-Z
60 numbered wire gauges:1 to 60
Metal storage case
Retains hardness at temperatures up to 1000° F

My experience has been amazing. The selection, the prices and most of all the service!    Review by bukk

Super fast shipping, great boxing and easy to order. Definitely keep ordering from here.    Review by Melanie

International fast shipping, can't express how good the service and packaging was.    Review by Manfred

Cutting-edge technology    Review by fritsche

excellent experience here, beautiful product, easy purchase, quick delivery.    Review by Thomas

Thank you for your delivery. It was fast, the clutch is very nice and i will come back for more shopping.    Review by Villana

Smart choice    Review by BAZIN

I got shipping confirmation and can contact the company for information about my package.    Review by Gildas

My order came over a week after it’s expected arrival date.    Review by JMR

fabulous items fast shipping fair pricing sale items are a must! will definitely be a long term customer!    Review by NEGRON

Admirable job!    Review by Nico

Super fast wasn’t expecting it to be here in 10 days .    Review by Chloé

Super Fast Delivery!! Beautiful packaging! Exactly as described. Easy, convienent returns!! My good place to order.    Review by spg75

Can’t believe how fast it got here! Thanks so much exactly what I wanted!    Review by FILIPPI