Flat Drills | McMaster-Carr

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1/4"-1" (increments of 1/16")

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1/4"-2 1/8" (increments of 1/8")

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142 Products

About Drill Bits

Compare material, finish, length class, and decimal size equivalents.

Drilling

Hole-Enlarging Drill-Bit Sets

Enlarge existing holes without changing the depth.

Hole-Enlarging Drill Bits

Enlarge existing holes without changing their depth.

Smooth-Finish Drill Bits for Wood

Bore clean, flat bottom holes in soft wood, veneer, and laminates.

Fast-Cutting Smooth-Finish Drill Bits for Wood

Multiple outlining teeth bore clean, flat-bottom holes without chipping or splintering your surface—even when cutting across the grain. Also known as multispur bits.

Flat-Blade Drill Bits for Wood

Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.

Adjustable-Size Flat-Blade Drill Bits for Wood

Cut a variety of hole sizes with one bit—slide the blade to the desired cutting diameter marked on the bit and then tighten the screw. Use in a drill press; they are not recommended for use with handheld drills.

Fast-Cutting Drill Bits for Wood

The screw point draws the bit in, quickly boring holes without applying pressure.

Flat-Blade Drill Bit Sets for Wood

Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.

Fast-Cutting Drill Bit Sets for Wood

The screw point draws the bit in, quickly boring holes without applying pressure.

Smooth-Finish Drill Bit Sets for Wood

Bore smooth-finish, flat bottom holes in soft wood, veneer, and laminates. Also known as Forstner bits.

Router Bits

Router Bit Sets

Keep a variety of router bits on hand to cut grooves, chamfers, and other detailed shapes into wood and plastic.

Hinge and Lock Mortise Router Bits

Use these bits to create large, shallow recesses in wood, such as mortises for hinge leaves or locks.