Countersinks For Wood | McMaster-Carr

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119 Products

About Countersinks

Countersinks cut a cone-shaped opening to install screws and rivets flush with a surface or hold workpieces between centers on a lathe. They can also be used for chamfering and deburring.

High-Speed Steel Drill-Bit Countersinks for Screws

Use on plastic and most metals.

Carbon Steel Drill-Bit Countersinks for Screws

For use on wood and plastic.

Drill-Bit Countersinks with Drill Bit

These countersinks come attached to a high-speed steel jobbers’ bit.

Quick-Change Combination
Countersinking Drill and Screwdriver Bits

Drill, countersink, and drive screws without switching three separate bits in and out of your power tool.

High-Speed Steel Drill-Bit Countersink Sets

For use with most metals in addition to plastic and wood.

Carbon Steel Drill-Bit Countersink Sets

Use with plastic and wood.

Quick-Change Combination Countersinking
Drill and Screwdriver Bit Sets

Fasten differently sized screws with these sets. They save you the effort of switching three separate bits in and out of a power tool, instead letting you flip between a countersinking drill and a screwdriver bit with a single hand.

Counterboring

Drill-Bit Counterbores with Drill Bit

These counterbores are attached to a drill bit for drilling and counterboring in a single step.

Drill-Bit Counterbores

For jobbers’ and brad-point drill bits.

Large-Diameter Drill-Bit Counterbores

Also known as multi-spur counterbores, these have two set screws to secure them to a woodworking drill bit.

Drill-Bit Counterbore Sets

Convert standard jobbers’ and brad-point drill bits into counterboring drill bits that drill and counterbore at the same time.