Countersink Drill Bits | McMaster-Carr

Filter by

Countersink Angle

For Use On

System of Measurement

Body Diameter

Number of Flutes

Screw Size

Shank Diameter

Shank Type

Material

Overall Length

Sold As

Drill Bit Size

Drill Tip Diameter

Hole Diameter

Finish

Number of Countersinking Ends

Shank Material

Pilot Diameter

Countersink Trade Size

REACH Compliance

RoHS Compliance

DFARS Compliance

Application

How can we improve?

2,610 Products

Fabricating and Machining

Countersinks

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

Countersink Extensions

Countersink Extensions

Lengthen the reach of countersink heads

Counterbores

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

Countersunk Hole Repair Tools

Countersunk Hole Repair Tools

Lightly shear off material to repair and clean out holes for machining between centers

Drill Bits

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

Burs

Cut excess material to smooth surfaces and holes using a rotary power tool like a die grinder

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