Centering Bits | McMaster-Carr

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Stainless Steel

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Aluminum Titanium Nitride (AlTiN) Coated

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Titanium Nitride (TiN) Coated

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Carbide-Tipped Steel

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4,757 Products

Fabricating and Machining

Center Drills

Drill cone-shaped openings to mate with lathe centers or start pilot holes for screws

Countersinks

Cut a cone-shaped opening in a hole to install flat-head screws and rivets flush with the surface

Counterbores

Enlarge the top of a hole to install socket and hex head screws flush with the surface

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

Countersink Drill Bits

Countersink Drill Bits

A single bit drills and creates an angled surface so oval and flat screw heads sit flush

Counterbore Drill Bits

Counterbore Drill Bits

A single bit drills and creates a flat surface for the head of a socket head cap screw

Drill/Screwdriver Bits

Drill/Screwdriver Bits

Quickly change between drilling countersunk holes and driving screws

Electrical Discharge Machining Electrode Guides

Electrical Discharge Machining Electrode Guides

Hold EDM electrodes in place as they penetrate workpieces

Electrical Discharge Machining Electrodes

Electrical Discharge Machining Electrodes

Create pilot holes and other small holes to run EDM wire through; use with hole-popping EDM machines

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)