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Shank Type Shank Type |
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Square | Morse Taper |
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Reamer Size Reamer Size |
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Overall Length Overall Length |
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Flute Length Flute Length |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Reamers
More
Reamers for Morse Taper-Socket Holes

Turn existing straight drilled holes into Morse taper holes. These reamers are also good for sizing and smoothing existing Morse taper holes and for removing nicks and burs in machine spindles. Hand turn with an adjustable wrench or straight-handle tap wrench (sold separately).
For technical drawings and 3-D models, click on a part number.
Reamers | |||||||||||||
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Reamer Dia. | Lg. | Optional Straight-Handle Tap Wrenches | |||||||||||
For Morse Taper Number | (A) | (B) | Square Shank Size | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | Each | ||
High-Speed Steel | |||||||||||||
0 | 0.3670" | 0.2500" | 0.2350" | 2 1/4" | 3 3/4" | 6 | Straight | -0.0005" to 0.0005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 000000 |
1 | 0.5170" | 0.3670" | 0.3300" | 3" | 5" | 6 | Straight | -0.0005" to 0.0005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | 0000000 | 00000 |
2 | 0.7450" | 0.5690" | 0.4700" | 3 1/2" | 6" | 8 | Straight | -0.0005" to 0.0005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | 0000000 | 000000 |
3 | 0.9880" | 0.7750" | 0.6550" | 4 1/4" | 7 1/4" | 8 | Straight | -0.0005" to 0.0005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 000000 |
4 | 1.2890" | 1.0170" | 0.8450" | 5 1/4" | 8 1/2" | 10 | Straight | -0.0005" to 0.0005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 000000 |
5 | 1.7990" | 1.4710" | 1.1250" | 6 1/4" | 9 3/4" | 10 | Straight | -0.0005" to 0.0005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 000000 |
Morse Taper-Shank Reamers for Hole Alignment

Use these reamers in stationary machines to ream, true, enlarge, align, and debur holes. They’re also called bridge reamers, car reamers, and aligning reamers. All have tapered ends for easy entry into misaligned holes. Do not use for reaming tapered holes.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | Direction | ||||||||||
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Reamer Size | Dia. (A) | Dia. (B) | Morse Taper Number | Flute | Overall | Flute Style | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | ||||||||||||
3/8" | 0.3750" | 0.2188" | 2 | 4 3/8" | 8 1/4" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
7/16" | 0.4375" | 0.2500" | 2 | 4 3/8" | 8 1/4" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1/2" | 0.5000" | 0.2813" | 2 | 4" | 7 9/16" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1/2" | 0.5000" | 0.2813" | 2 | 5 1/8" | 9" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
9/16" | 0.5625" | 0.3438" | 2 | 4" | 7 9/16" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
9/16" | 0.5625" | 0.3438" | 2 | 5 1/8" | 9" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
5/8" | 0.6250" | 0.3438" | 2 | 4 1/2" | 8 1/16" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
5/8" | 0.6250" | 0.3750" | 2 | 6 1/8" | 10" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
11/16" | 0.6875" | 0.3750" | 3 | 4 1/2" | 8 13/16" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
11/16" | 0.6875" | 0.3906" | 3 | 7 1/8" | 11 3/4" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
3/4" | 0.7500" | 0.4063" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
3/4" | 0.7500" | 0.4063" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
13/16" | 0.8125" | 0.4688" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
13/16" | 0.8125" | 0.5000" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
7/8" | 0.8750" | 0.4688" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
7/8" | 0.8750" | 0.5625" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
15/16" | 0.9375" | 0.5938" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
15/16" | 0.9375" | 0.5938" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1" | 1.0000" | 0.5938" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1" | 1.0000" | 0.6875" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/16" | 1.0625" | 0.6250" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/16" | 1.0625" | 0.7500" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/8" | 1.1250" | 0.6563" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/8" | 1.1250" | 0.8125" | 3 | 7 3/8" | 12" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/4" | 1.2500" | 0.7188" | 3 | 5" | 9 1/2" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/4" | 1.2500" | 0.9375" | 4 | 7 3/8" | 13" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 3/8" | 1.3750" | 1.0625" | 4 | 7 3/8" | 13" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/2" | 1.5000" | 1.1875" | 4 | 7 3/8" | 13" | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Morse Taper-Shank Reamers

The tapered shank fits the spindle hole of machine tools with a Morse taper. The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | |||||||||
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Size | Diameter | Morse Taper Number | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | ||||||||||
1/2" | 0.5000" | 1 | 2" | 8" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
5/8" | 0.6250" | 2 | 2 1/4" | 9" | 8 | Straight | 0" to 0.0003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 0.7500" | 2 | 2 1/2" | 9 1/2" | 8 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
13/16" | 0.8125" | 2 | 2 1/2" | 9 1/2" | 8 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 0.8750" | 2 | 2 5/8" | 10" | 8 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1" | 1.0000" | 3 | 2 3/4" | 10 1/2" | 8 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/16" | 1.0625" | 3 | 2 3/4" | 10 1/2" | 8 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/8" | 1.1250" | 3 | 2 7/8" | 11" | 8 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 3/16" | 1.1875" | 3 | 2 7/8" | 11" | 10 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/4" | 1.2500" | 4 | 3" | 11 1/2" | 10 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 3/8" | 1.3750" | 4 | 3 1/4" | 12" | 10 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/2" | 1.5000" | 4 | 3 1/2" | 12 1/2" | 10 | Straight | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |