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About Counterbores
Create flat-bottomed holes, so your screw heads sit flush, recessed, or slightly raised.
Counterbores for High-Profile Rounded-Head Screws
Cut flat, close-fitting recesses for fillister-head screws. These counterbores cut deeply enough for screws with tall head profiles to sit flush with the surface.
High-Speed Steel
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Durable and wear resistant, these counterbores make accurate cuts in most materials without chipping or cracking.
Uncoated | ||||||||||
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For Screw Size | Body Dia. | Overall Lg. | Shank Type | No. of Flutes | Pilot Lg. | Each | ||||
No. 1 | 0.133" | 2 1/2" | Round | 2 | 0.170" | 0000000 | 000000 | |||
EachDelivers Tuesday | ||||||||||