4.2 mm Reamers | McMaster-Carr

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	System of Measurement System of Measurement

	Reamer Diameter Reamer Diameter	Show

	Reamer Diameter Reamer Diameter	Hide

0.2500"-9/32"

0.2500"-0.4688"

9/32"-5/16"

5/16"-11/32"

11/32"-3/8"

3/8"-13/32"

13/32"-7/16"

27/64"-29/64"

27/64"-15/32"

7/16"-15/32"

7/16"-1/2"

7/16"-1.2500"

15/32"-17/32"

0.4688"-1 1/16"

0.4688"-1.5313"

1/2"-9/16"

17/32"-19/32"

9/16"-5/8"

19/32"-21/32"

5/8"-11/16"

21/32"-23/32"

11/16"-3/4"

23/32"-25/32"

3/4"-13/16"

25/32"-27/32"

13/16"-7/8"

27/32"-15/16"

7/8"-1"

15/16"-1 1/16"

1"-1 1/8"

1 1/16"-1 3/16"

1 1/8"-1.2500"

1 3/16"-1 11/32"

1 1/4"-1 7/16"

1 11/32"-1 17/32"

1 7/16"-1 5/8"

1 17/32"-1 25/32"

1 5/8"-1 7/8"

1 25/32"-2 3/32"

1 7/8"-2 3/16"

2 3/32"-2 15/32"

2 3/16"-2 9/16"

2 9/16"-3"

	Flute Style Flute Style

	Straight

	For Use On For Use On

Stainless
Steel

	Material Material

High-Speed Steel

	Shank Type Shank Type

	Round

	Diameter Rating Diameter Rating

	Flute Length Flute Length

	Overall Length Overall Length

	Number of Flutes Number of Flutes

	6

	Reamer Type Reamer Type

Chucking (Machine)

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About Reamers

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Metric Size High-Speed Steel Round-Shank Reamers

The shank diameter is slightly smaller than the reamer diameter.

	Lg.
Reamer Dia., mm	Flute	Overall	Number of Flutes	Flute Style	Cutting Dia. Tolerance, mm	For Use On		Each
High-Speed Steel

4.2000	1 1/8"	4 1/2"	6	Straight	0 to 0.005	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	00000000	000000

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