8 Flute Reamers | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Spiral Direction Spiral Direction

Left Hand

Right Hand

	For Taper Pin Number For Taper Pin Number

	Square Shank Size Square Shank Size

	Application Application

For Taper Pin Holes

For Pipe

For Morse Taper Socket
Holes

	Rate of Taper Rate of Taper

1/4" per 12"

1 mm per 50 mm

	For Pipe Size Range For Pipe Size Range

3/4

	For Morse Taper Number For Morse Taper Number

	Morse Taper Number Morse Taper Number

	Recommended Expansion Limit Recommended Expansion Limit

0.013"

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About Reamers

High-Speed Steel Round-Shank Reamers

These are standard inch‐sized reamers.

Oversized High-Speed Steel Round-Shank Reamers

Create a looser fit than standard reamer sizes.

Undersized High-Speed Steel Round-Shank Reamers

Use these reamers to create a tighter fit than standard reamer sizes.

Metric Size High-Speed Steel Round-Shank Reamers

These are standard metric-sized reamers.

Cobalt Steel Round-Shank Reamers

Choose these cobalt steel reamers for good performance on hard-to-machine materials.

Metric Size Cobalt Steel Round-Shank Reamers

Offering good performance on hard-to-machine materials, these cobalt steel reamers come in metric sizes.

Carbide-Tipped Round-Shank Reamers

More abrasion resistant than cobalt steel and high-speed steel reamers, these maintain a sharper, harder edge at high temperatures for excellent performance on hard and abrasive materials.

Metric Size Hand Reamers

Turn these metric reamers by hand with a straight-handle tap wrench.

Inch Size Hand Reamers

Turn these inch size reamers by hand with a straight-handle tap wrench.

Morse Taper-Shank Reamers

The tapered shank fits the spindle hole of machine tools with a Morse taper.

Expansion Round-Shank Reamers

These reamers are designed for use in drill presses, turret lathes, screw machines, and other machine tools.

Expansion Hand Reamers

Use an adjustable wrench or straight-handle tap wrench to turn these reamers by hand.

Inch Size Hand Reamers for Taper-Pin Holes

Hand turn these inch size reamers with an adjustable wrench, straight-handle tap wrench, or pin vise to ream existing holes for use with standard taper pins.

Metric Size Hand Reamers for Taper-Pin Holes

Hand turn these metric reamers with an adjustable wrench, straight-handle tap wrench, or pin vise to ream existing holes for use with standard taper pins.

Reamers for Taper-Pipe Holes

Use these reamers before tapping with taper-pipe taps.

Reamers for Morse Taper-Socket Holes

Turn existing straight drilled holes into Morse taper holes.