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Reamer Diameter Reamer Diameter | Show |
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For Use On For Use On |
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Flute Length Flute Length |
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Spiral Direction Spiral Direction |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Morse Taper Number For Morse Taper Number |
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About Reamers
More
High-Speed Steel Round-Shank Reamers
The shank diameter is slightly smaller than the reamer diameter.
Titanium nitride (TiN) coated reamers run faster than uncoated reamers and last twice as long. The coating acts as a barrier against high temperatures and abrasion.
Straight-flute reamers are for general purpose cutting.
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.
Reamer | Lg. | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Cutting Diameter Tolerance | For Use On | Each | |
Straight Flute | ||||||||
| 1/4" | 0.2500" | 1 1/2" | 6" | 6 | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Reamer | Lg. | Direction | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
Spiral Flute | ||||||||||
| 1/4" | 0.2500" | 1 1/2" | 6" | 6 | Right Hand | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Reamer | Lg. | Direction | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
Spiral Flute | ||||||||||
| 1/4" | 0.2500" | 1 1/2" | 6" | 6 | Right Hand | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000000 | 000000 |
Letter Size High-Speed Steel Round-Shank Reamers
The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||
| E | 0.2500" | 1 1/2" | 6" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
Carbide Round-Shank Reamers
Solid carbide provides exceptional wear resistance and high accuracy in addition to excellent abrasion and heat resistance when cutting hard and abrasive materials. These reamers require rigid tool holding to prevent breakage and are not for use with hand-held tools.
For technical drawings and 3-D models, click on a part number.
Dia. | Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | Reamer | Shank | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
| 1/4" | 0.2500" | 1/4" | 1" | 3" | 4 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Cobalt Steel Round-Shank Reamers
Choose these cobalt steel reamers for good performance on hard-to-machine materials. The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Cobalt Steel | |||||||||
| 1/4" | 0.2500" | 1 1/2" | 6" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Letter Size Cobalt Steel Round-Shank Reamers
These reamers are cobalt steel for good performance on hard-to-machine materials. The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Cobalt Steel | |||||||||
| E | 0.2500" | 1 1/2" | 6" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Carbide-Tipped Round-Shank Reamers
These reamers are carbide-tipped tool steel for excellent abrasion and heat resistance when cutting hard and abrasive materials. The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide-Tipped Tool Steel | |||||||||
| 1/4" | 0.2500" | 1 1/2" | 6" | 4 | Straight | 0" to 0.0003" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Inch Size Hand Reamers
Use a straight-handle tap wrench (sold separately) to turn these reamers by hand. The cutting end is slightly tapered to ease hole entry for the final sizing of drilled holes. Choose a straight-handle tap wrench that fits the diameter of your hand reamer.
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.
Reamer | Lg. | Direction | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Square Shank Size | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||
Straight Flute | |||||||||||
| 1/4" | 0.2500" | 0.185" | 2" | 4" | 6 | __ | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Spiral Flute | |||||||||||
| 1/4" | 0.2500" | 0.185" | 2" | 4" | 6 | Left Hand | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Threaded-Shank Reamers
These reamers have a 1/4”-28 threaded shank. All have a built-in pilot with a 45° chamfer angle to maintain alignment in the hole.
Dia. | Lg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | Reamer | Pilot | Flute | Pilot | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | Pilot Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | ||||||||||||
| 1/4" | 0.2500" | 0.240" | 1 1/8" | 1/4" | 2 3/8" | 6 | Straight | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Expansion Hand Reamers
Use an adjustable wrench or straight-handle tap wrench (sold separately) to turn these reamers by hand. When the reamer wears down, twist the set screw to expand the diameter, and then grind the reamer to its original size. The cutting end is slightly tapered to ease hole entry for the final sizing of drilled holes.
These reamers are not designed for producing holes larger than the listed diameter or for producing holes of various sizes. The adjustment screw should never be loosened.
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.
Reamers | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Reamer | Lg. | Direction | Optional Straight-Handle Tap Wrenches | |||||||||||
| Size | Dia. | Square Shank Size | Flute | Overall | Number of Flutes | Spiral | Cut | Recommended Expansion Limit | Cutting Dia. Tolerance | For Use On | Each | Each | ||
High-Speed Steel | ||||||||||||||
Straight Flute | ||||||||||||||
| 1/4" | 0.2500" | 0.185" | 1 7/16" | 4 1/4" | 6 | __ | __ | 0.010" | -0.0005" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 000000 |
Spiral Flute | ||||||||||||||
| 1/4" | 0.2500" | 0.185" | 1 7/16" | 4 1/4" | 6 | Left Hand | Right Hand | 0.010" | -0.0005" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | 0000000 | 00000 |
Round-Shank Drill Reamers
Drill and finish holes in a single pass with these dual-purpose tools. The tapered tip gradually pierces your material to reduce friction, and the straight flutes make clean cuts without chipping or peeling the edge of the hole. Made from solid carbide, these drill reamers are strong and heat resistant. The flutes stay sharp even when cutting abrasive materials such as carbon fiber, fiberglass, and graphite. Use them in drill presses or other machines—carbide is brittle, and will break if used to drill by hand.
Dia. | Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | Reamer | Shank | Max. Drilling Dp. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide | |||||||||||
Inch | |||||||||||
| 1/4" | 0.2500" | 1/4" | 2.13" | 2 1/8" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 0000000 |
Round-Shank Reamers for Hole Alignment with Safety Collar
A collar on the shank prevents you from reaming past the cutting edge. These reamers are for use with hand-held electric and air tools. Also known as bridge reamers, car reamers, and aligning reamers, they ream, true, enlarge, align, and debur holes. All have tapered ends for easy entry into misaligned holes. They are not for reaming tapered holes.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | Direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | (A) | (B) | Shank Dia. | Flute | Overall | Flute Style | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | ||||||||||||
| 1/4" | 0.2500" | 0.1250" | 1/4" | 1 7/8" | 4" | Spiral | Left Hand | Right Hand | 0" to 0.005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 5/8" | 0.6250" | 0.2500" | 1/2" | 4 7/16" | 6 9/16" | Spiral | Left Hand | Right Hand | 0" to 0.005" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Round-Shank Reamers for Hole Alignment
For use with hand-held electric and air tools, these ream, true, enlarge, align, and debur holes. They’re also known as bridge reamers, car reamers, and aligning reamers. All have tapered ends for easy entry into misaligned holes. They are not for reaming tapered holes.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | Direction | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | (A) | (B) | Shank Dia. | Flute | Overall | Number of Flats | Flute Style | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||||
| 1/4" | 0.2500" | 0.1563" | 1/4" | 2 1/4" | 4 3/8" | 0 | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 3/8" | 0.3750" | 0.2500" | 3/8" | 2 1/2" | 4 5/8" | 3 | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7/16" | 0.4375" | 0.2500" | 7/16" | 3 1/4" | 5 3/8" | 3 | Spiral | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Hex Nut-Shank Reamers for Hole Alignment with Safety Magnets
Magnets on the hex nut hold the reamer in place in your tool and prevent it from accidentally falling when not in the square-drive impact wrench socket. Also known as bridge reamers, car reamers, and aligning reamers, they ream, true, enlarge, align, and debur holes. All have tapered ends for easy entry into misaligned holes. Do not use for reaming tapered holes.
Reamers with spiral flutes are a good choice for materials that are difficult to ream, such as high-carbon steel and cast iron.
Reamer Dia. | Lg. | Direction | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | (A) | (B) | Hex Shank Size | Flute | Overall | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||
Spiral | |||||||||||
| 7/16" | 0.4375" | 0.2500" | 1 1/4" | 3 1/2" | 5 3/8" | Left Hand | Right Hand | 0" to 0.01" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||||||
| 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 | 0000000 |
Hand Reamers for Hole Deburring
Use the T-handle to turn these reamers by hand. They’re also known as repairmen’s reamers.
Spiral-flute reamer removes burs from pipe and conduit in addition to countersinking, enlarging, and smoothing the edges of holes in thin sheet metal.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | Direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | (A) | (B) | For Pipe Size Range  | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | ||||||||||||
Spiral Flute | ||||||||||||
| 1/4"-2 17/64" | 2.2656" | 0.2500" | 1/4-2 | 3 7/8" | 5 7/8" | 12 | Left Hand | Right Hand | -0.003" to 0.003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
Round-Shank Reamers for Hole Deburring
Attach these reamers to hand-held drills. They’re also known as repairmen’s reamers.
Spiral-flute reamers remove burs from pipe and conduit in addition to countersinking, enlarging, and smoothing the edges of holes in thin sheet metal.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | Direction | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. (A) | Dia. (B) | Shank Dia. | For Pipe Size Range | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||||
Spiral Flute | |||||||||||||
| 1/4"-1 15/32" | 1.4688" | 0.2500" | 1/2" | 1/4-1 1/4 | 3" | 5" | 10 | Left Hand | Right Hand | -0.003" to 0.003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
| 1/4"-2 17/64" | 2.2656" | 0.2500" | 1/2" | 1/4-2 | 3 7/8" | 5 7/8" | 12 | Left Hand | Right Hand | -0.003" to 0.003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Ratcheting Hand Reamers for Deburring Pipe and Conduit
An extra-long ratcheting handle gives you leverage to smooth rough ends of pipe and conduit quicker than standard hand reamers. Use these reamers to enlarge holes and remove burrs prior to threading for fittings.
Reamer Dia. | Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | (A) | (B) | For Pipe Size Range | Flute | Reamer Handle | Ratcheting Handle | Number of Flutes | For Use On | Each | |
Hardened Steel | ||||||||||
Straight Flute | ||||||||||
| 1/4"-2 1/4" | 2.2500" | 0.2500" | 1/8-2 | 6 3/8" | 6 5/8" | 16" | 5 | Aluminum, Brass, Bronze, Copper, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
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 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 |
Inch Size High-Speed Steel Reamer Sets
Straight-flute reamers are for general purpose cutting.
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 |
Inch Size High-Speed Steel Drill-Length Reamer Sets
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.
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.
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.
| Sizes Included | Number of Pieces | Flute Style | Container Type | For Use On | Set | |
High-Speed Steel | ||||||
|---|---|---|---|---|---|---|
| A-Z | 26 | Straight | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000 | 0000000 |