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Cobalt Bits
Individual cobalt alloy drill bits, with a carbide tipped bit also here. Sizes include 19/64 inch, 7/16 inch and 5/32 inch, with straight, 3-flat and quick-change hex shanks.
Trusted brands only
Ships nationwide
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Support your local hardware store
In-Store
Milwaukee
Milwaukee Cobalt Red Helix 7/64 in. X 2-5/8 in. L Alloy Steel Thunderbolt Drill Bit Round Shank
MPN: 48-89-2304
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 1/8 in. X 2-3/4 in. L Steel Thunderbolt Drill Bit Round Shank
MPN: 48-89-2305
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 5/32 in. X 3-1/8 in. L Steel Thunderbolt Drill Bit Round Shank
MPN: 48-89-2307
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 3/32 in. X 2.68 in. L Steel Thunderbolt Drill Bit Round Shank
MPN: 48-89-2303
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 5/16 in. X 4-1/2 in. L Steel Thunderbolt Drill Bit 3-Flat Shank
MPN: 48-89-2317
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 7/16 in. X 5.12 in. L Steel Thunderbolt Drill Bit 3-Flat Shank
MPN: 48-89-2325
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 3/8 in. X 5.12 in. L Steel Thunderbolt Drill Bit 3-Flat Shank
MPN: 48-89-2321
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
In-Store
Milwaukee
Milwaukee Red Helix 1/2 in. X 5.12 in. L Steel Thunderbolt Drill Bit 3-Flat Shank
MPN: 48-89-2329
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
USA
Irwin
Irwin 1/2 in. X 6 in. L Cobalt Steel Drill Bit Straight Shank
MPN: 3016132
$18.99
USA
Irwin
Irwin 3/8 in. X 5 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016024
$13.99
USA
Irwin
Irwin 7/32 in. X 3-3/4 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016014
$7.99
USA
Irwin
Irwin 5/16 in. X 4-1/2 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016020
$12.99
USA
Irwin
Irwin 1/4 in. X 4 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016016
$8.99
USA
Irwin
Irwin 5/32 in. X 3-1/8 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016010
$6.99
USA
Irwin
Irwin 3/16 in. X 3-1/2 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016012
$7.59
USA
Irwin
Irwin 11/64 in. X 3-1/4 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016011
$6.99
USA
Irwin
Irwin 9/64 in. X 2-7/8 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016009
$6.59
USA
Irwin
Irwin 1/8 in. X 2-3/4 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016008
$6.59
USA
Irwin
Irwin 3/32 in. X 2-1/4 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016006
$5.99
USA
Irwin
Irwin 7/64 in. X 2-5/8 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016007
$5.99
USA
Irwin
Irwin 1/16 in. X 1-7/8 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016004
$5.59
Irwin
Irwin 17/64 in. X 4-1/8 in. L Cobalt Alloy Steel Drill Bit Straight Shank
MPN: 3016017
$9.59
Irwin
Irwin 25/64 in. X 1-7/8 in. L Cobalt Drill Bit Straight Shank
MPN: 3016025
$13.99
In-Store
Milwaukee
Milwaukee Red Helix 17/64 in. X 4.13 in. L Cobalt Drill Bit 3-Flat Shank
MPN: 48-89-2314
Check with your local store
Sold in stores — they stock it, price it fair, stand behind it.
More About This Collection Cobalt Bits
Individual cobalt alloy drill bits, with a carbide tipped bit also here. Sizes include 19/64 inch, 7/16 inch and 5/32 inch, with straight, 3-flat and quick-change hex shanks.
Choose the diameter you need, then check length and shank. Milwaukee Red Helix and Irwin cobalt bits are included. ARTU makes the carbide tipped bit.
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