Reamer Sets | McMaster-Carr

Spiral-flute reamers have a right-hand spiral and a right-hand cut. They pull chips upward as they cut, so they’re often used in blind holes. Spiral flutes create a smoother finish than straight flutes and work well in keyways and other applications with an interrupted cut.

For technical drawings and 3-D models, click on a part number.

		Direction
Sizes Included	Number of Pieces	Spiral	Cut	Container Type	For Use On		Set
High-Speed Steel
Straight Flute
1/16"-1/2" (Increments of 1/32")	15	__	__	Roll Pouch	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	0000000
1/16"-1/2" (Increments of 1/64")	29	__	__	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000
1/16"-1/2" (Increments of 1/64")	29	__	__	Wood Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	000000
Spiral Flute
1/16"-1/2" (Increments of 1/64")	29	Right Hand	Right Hand	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	000000

Undersized/Oversized High-Speed Steel Reamer Sets

With Roll Pouch

With Wood Case

These reamers allow for a slightly tighter or looser fit than standard reamer diameters.

Straight-flute reamers are for general purpose cutting.

For technical drawings and 3-D models, click on a part number.

		Direction
Sizes Included	Number of Pieces	Spiral	Cut	Container Type	For Use On		Each
High-Speed Steel
Straight Flute
0.124"-0.499" (Seven Undersized Reamers), 0.126"-0.501" (Seven Oversized Reamers)	14	__	__	Roll Pouch	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	0000000
0.124"-0.499" (Seven Undersized Reamers), 0.126"-0.501" (Seven Oversized Reamers)	14	__	__	Wood Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000
Spiral Flute
0.124"-0.499" (Seven Undersized Reamers), 0.126"-0.501" (Seven Oversized Reamers)	14	Right Hand	Right Hand	Wood Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000

Metric Size High-Speed Steel Reamer Sets

With Wood Case

With Metal Case

For technical drawings and 3-D models, click on a part number.

High-Speed Steel
Sizes Included	Number of Pieces	Flute Style	Container Type	For Use On		Set
1-7 mm (Increments of 0.5 mm)	13	Straight	Wood Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	0000000
1-13 mm (Increments of 0.5 mm)	25	Straight	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000

Wire Gauge Size High-Speed Steel Reamer Sets

20-Piece Set

60-Piece Set

For technical drawings and 3-D models, click on a part number.

High-Speed Steel
Sizes Included	Number of Pieces	Flute Style	Container Type	For Use On		Set
61-80	20	Straight	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	0000000
1-60	60	Straight	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	00000000

Inch Size High-Speed Steel Drill-Length Reamer Sets

13-Piece Set

29-Piece Set

15-Piece Set

These reamers have the same overall length as jobbers’ drill bits for tool interchangeability. The overall length is shorter than standard-length reamers for added rigidity.

Straight-flute reamers are for general purpose cutting.

For technical drawings and 3-D models, click on a part number.

		Spiral
Sizes Included	Number of Pieces	Spiral	Cut	Container Type	For Use On		Set
High-Speed Steel
Straight Flute
1/16"-1/4" (Increments of 1/64")	13	__	__	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	0000000
1/16"-1/2" (Increments of 1/64")	29	__	__	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	000000
Spiral Flute
1/16"-1/2" (Increments of 1/32")	15	Right Hand	Right Hand	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000

Letter Size High-Speed Steel Drill-Length Reamer Sets

With the same overall length as jobbers’ drill bits, these reamers make it easy to interchange tools. The overall length is shorter than standard-length reamers for added rigidity.

For technical drawings and 3-D models, click on a part number.

High-Speed Steel
Sizes Included	Number of Pieces	Flute Style	Container Type	For Use On		Set
A-Z	26	Straight	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	0000000

Wire Gauge Size High-Speed Steel Drill-Length Reamer Sets

These reamers have the same overall length as jobbers’ drill bits for tool interchangeability. For added rigidity, the overall length is shorter than standard-length reamers.

For technical drawings and 3-D models, click on a part number.

High-Speed Steel
Sizes Included	Number of Pieces	Flute Style	Container Type	For Use On		Set
1-60	60	Straight	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	000000	0000000

Undersized/Oversized Cobalt Steel Standard-Length Reamer Sets

These reamers in these sets are cobalt steel for good performance on hard-to-machine materials. They create a tighter or looser fit than standard reamer diameters.

Straight-flute reamers are for general purpose cutting.

For technical drawings and 3-D models, click on a part number.

		Spiral
Sizes Included	Number of Pieces	Spiral	Cut	Container Type	For Use On		Each
Cobalt Steel
Straight Flute
0.124"-0.499" (Seven Undersized Reamers), 0.126"-0.501" (Seven Oversized Reamers)	14	__	__	Wood Case	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	0000000	0000000
Spiral Flute
0.124"-0.499" (Seven Undersized Reamers), 0.126"-0.501" (Seven Oversized Reamers)	14	Right Hand	Right Hand	Wood Case	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	0000000	000000

Angle-Blade Adjustable-Size Reamer Sets

10-Piece Set

8-Piece Set

11-Piece Set

These reamers are commonly used on holes with keyways and other interrupted cuts. Tighten or loosen the two nuts to move the adjustable blades within the diameter range.

Tool Steel
Sizes Included	Number of Pieces	Container Type	For Use On		Set
7/16"-1 1/4"	10	Wood Case	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium	0000000	0000000
15/32"-1 1/16"	8	Wood Case	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium	0000000	000000
15/32"-1 17/32"	11	Wood Case	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium	0000000	00000000

Straight-Blade Adjustable-Size Reamer Sets

To use with multiple hole sizes, tighten or loosen the two nuts on the reamers in this set to move the adjustable blades within the diameter range.

High-Speed Steel
Sizes Included	Number of Pieces	Container Type	For Use On		Set
1/4"-15/32"	7	Wood Case	Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium	0000000	0000000

High-Speed Steel Reamer Sets for Dowel Pins

Size holes for installing dowel pins. These sets include 2 reamers for each size within the range listed. One reamer is slightly below the size while the other is slightly above the size, so you can choose how snug your dowel pin will fit in the hole.

For technical drawings and 3-D models, click on a part number.

High-Speed Steel
Sizes Included	Number of Pieces	Flute Style	Container Type	For Use On		Each
1/8"-1/2" (Increments of 1/16", 2 of each)	14	Straight	Metal Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	0000000

Cobalt Steel Reamer Sets for Dowel Pins

With better heat and abrasion resistance than high-speed steel, cobalt steel can run up to 25% faster and has a longer tool life. Use these reamers to size holes for installing dowel pins.

For technical drawings and 3-D models, click on a part number.

Cobalt Steel
Sizes Included	Number of Pieces	Flute Style	Container Type	For Use On		Each
1/8"-1/2" (Increments of 1/16")	14	Straight	Metal Case	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	0000000	0000000

Hole-Enlarging Drill-Bit Sets

Enlarge existing holes without changing the depth. These bits have flutes with a right-hand spiral and a right-hand cut. The flutes pull chips upward as they cut for use in blind holes.

For technical drawings and 3-D models, click on a part number.

				Direction
Drill Bit Size	Sizes Included	Number of Pieces	Flute Style	Spiral	Cut	Container Type	For Use On	System of Measurement		Set
Black and Gold Oxide Tool Steel
1/4", 5/16", 3/8", 25/64", 15/32", 1/2", 5/8", 3/4"	1/4", 5/16", 25/64", and 15/32" Hole-Starting Bits; 3/8", 1/2", 5/8", and 3/4" Hole-Enlarging Bits	8	Spiral	Right Hand	Right Hand	Metal Case	Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Inch	00000000	0000000

Reamer Sets for Taper-Pin Holes

7-Piece Set

6-Piece Set

11-Piece Set

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

Straight-flute reamers are for general purpose cutting.

Spiral-flute reamers have a left-hand spiral and a right-hand cut. They push chips downward as they cut, so they’re often used in through holes. Spiral flutes create a smoother finish than straight flutes and work well in keyways and other applications with an interrupted cut.

For technical drawings and 3-D models, click on a part number.

		Spiral
Sizes Included	Number of Pieces	Spiral	Cut	Container Type	For Use On		Set
High-Speed Steel
Straight Flute
0-10	11	__	__	Plastic Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	0000000
0-5	6	__	__	Plastic Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000
7/0-0	7	__	__	Plastic Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000
Spiral Flute
0-10	11	Left Hand	Right Hand	Plastic Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000
0-5	6	Left Hand	Right Hand	Plastic Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000
7/0-0	7	Left Hand	Right Hand	Plastic Case	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000

About Reamers

Inch Size High-Speed Steel Reamer Sets

Undersized/Oversized High-Speed Steel Reamer Sets

Metric Size High-Speed Steel Reamer Sets

Wire Gauge Size High-Speed Steel Reamer Sets

Inch Size High-Speed Steel Drill-Length Reamer Sets

Letter Size High-Speed Steel Drill-Length Reamer Sets

Wire Gauge Size High-Speed Steel Drill-Length Reamer Sets

Undersized/Oversized Cobalt Steel Standard-Length Reamer Sets

Angle-Blade Adjustable-Size Reamer Sets

Straight-Blade Adjustable-Size Reamer Sets

High-Speed Steel Reamer Sets for Dowel Pins

Cobalt Steel Reamer Sets for Dowel Pins

Hole-Enlarging Drill-Bit Sets

Reamer Sets for Taper-Pin Holes