Cobalt-coated high speed steel drill bits stay sharper longer for extended drill life. The 135 split point is self-centering, quick starting and highly accurate. Size From 1/16 in. to 3/8 in. in 1/64 in. increments, Case Included Yes, Finish Type Cobalt-coated, Includes qty. 21.
Average Customer Rating:
(1 Review) 1
Rating Summary(1 review)
1 of 1(100%)would recommend this product to a friend.
Customer Reviews for Northern Industrial 135?? Cobalt-Coated Drill Bits - 21-Pc. Set
Review 1 for Northern Industrial 135?? Cobalt-Coated Drill Bits - 21-Pc. Set
Works, but not with steel
October 19, 2009
"These drill bits work fine, however when I tried to drill through some 10 gauge steel, the bit wouldn't do anything at all. My 10 year old black oxide bits did the job much better. I bought the Cobalt ones thinking they would be better for heavy duty use, so I am disappointed in their performance. If you using these for light weight use in softer materials, they are fine."
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