System of Measurement System of Measurement |
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Reamer Diameter Reamer Diameter | Show |
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Reamer Diameter Reamer Diameter | Hide |
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For Use On For Use On |
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Material Material |
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Shank Type Shank Type |
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 | Round |
Reamer Type Reamer Type |
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Diameter Rating Diameter Rating |
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Cut Direction Cut Direction |
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Spiral Direction Spiral Direction |
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Size Size |
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Finish Finish |
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Minimum Expansion Minimum Expansion |
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Maximum Drilling Depth Maximum Drilling Depth |
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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.
Lg. | |||||||
|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Cutting Dia. Tolerance | For Use On | Each | |
Straight Flute | |||||||
| 0.4375" | 1 3/4" | 7" | 6 | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Lg. | Direction | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
Spiral Flute | |||||||||
| 0.4375" | 1 3/4" | 7" | 6 | Right Hand | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Lg. | Direction | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
Spiral Flute | |||||||||
| 0.4375" | 1 3/4" | 7" | 6 | Right Hand | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000000 | 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.
Dia. | Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reamer | Shank | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
| 0.4375" | 7/16" | 1 3/8" | 4" | 6 | Straight | 0" to 0.0003" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 0000000 |
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.
Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Cobalt Steel | ||||||||
| 0.4375" | 1 3/4" | 7" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 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.
Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide-Tipped Tool Steel | ||||||||
| 0.4375" | 1 3/4" | 7" | 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.
Lg. | Direction | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||
Straight Flute | |||||||||
| 0.4375" | 2 3/4" | 5 1/2" | 6 | __ | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Spiral Flute | |||||||||
| 0.4375" | 2 3/4" | 5 1/2" | 6 | Left Hand | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Expansion Round-Shank Reamers
When the reamer wears down, twist the set screw to expand the diameter, and then grind the reamer to its original size. 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.
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.
Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reamer Dia. | Flute | Overall | Number of Flutes | Flute Style | Min. Expansion | Cutting Dia. Tolerance | For Use On | Each | |
Carbide-Tipped Tool Steel | |||||||||
| 0.4375" | 1" | 7" | 4 | Straight | 0.006" | 0" to 0.0003" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
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 fiberglass, carbon fiber, and graphite. Use them in drill presses or other machines—carbide is brittle, and will break if used to drill by hand.
Dia. | Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Reamer | Shank | Max. Drilling Dp. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide | |||||||||||
Inch | |||||||||||
| 7/16" | 0.4375" | 0.437" | 3.44" | 3 7/16" | 6" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 0000000 |