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About Reamers
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Undersized High-Speed Steel Round-Shank Reamers
These reamers create a tighter fit than standard reamer sizes. The reamer diameter accounts for the 0.001†undersized diameter rating. 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 | |
High-Speed Steel | ||||||||
| 0.1240" | 7/8" | 3 1/2" | 4 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 0.1865" | 1 1/8" | 4 1/2" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.2490" | 1 1/2" | 6" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.3115" | 1 1/2" | 6" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.3740" | 1 3/4" | 7" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.4365" | 1 3/4" | 7" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.4990" | 2" | 8" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.5615" | 2" | 8" | 8 | Straight | 0" to 0.0003 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.6240" | 2 1/4" | 9" | 8 | Straight | 0" to 0.0003 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.6865" | 2 1/4" | 9" | 8 | Straight | 0" to 0.0003 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.7490" | 2 1/4" | 9" | 8 | Straight | 0" to 0.0003 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.8740" | 2 5/8" | 10" | 8 | Straight | 0" to 0.0004 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.9990" | 2 5/8" | 10" | 10 | Straight | 0" to 0.0004 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Undersized Cobalt Steel Round-Shank Reamers
Create a tighter fit than standard reamer diameters. For good performance on hard-to-machine materials, these reamers are cobalt steel. The reamer diameter accounts for the 0.001†undersized diameter rating. 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 | ||||||||
| 0.1240" | 7/8" | 3 1/2" | 4 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
| 0.1865" | 1 1/8" | 4 1/2" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 |
| 0.2490" | 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 | 00000 |
| 0.3115" | 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 | 00000 |
| 0.3740" | 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 | 00000 |
| 0.4365" | 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 | 00000 |
| 0.4990" | 2" | 8" | 6 | Straight | 0" to 0.0002 | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 |
Undersized Carbide Round-Shank Reamers
Create a tighter fit than standard reamer diameters. These reamers are solid carbide for exceptional wear resistance and high accuracy in addition to excellent abrasion and heat resistance when cutting hard and abrasive materials. They require rigid tool holding to prevent breakage and are not for use with hand-held tools. The reamer diameter accounts for the 0.001†undersized diameter rating.
Dia. | Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Reamer | Shank | Flute | Reach | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide | ||||||||||
| 0.1240" | 1/8" | 5/8" | 1 1/4" | 2 1/4" | 4 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 0.1865" | 3/16" | 7/8" | 1 3/4" | 2 3/4" | 4 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 0.2490" | 1/4" | 1" | 2" | 3" | 4 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 0.3115" | 5/16" | 1 1/8" | 2 1/4" | 3 3/4" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 0.3740" | 3/8" | 1 3/16" | 2 3/8" | 4" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Undersized/Oversized High-Speed Steel Reamer Sets
These reamers allow for a slightly tighter or looser fit than standard reamer diameters.
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.
Direction | |||||||
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| Sizes Included | Number of Pieces | Spiral | Cut | Container Type | For Use On | Each | |
High-Speed Steel | |||||||
Straight Flute | |||||||
| 0.124"-0.499", 0.126"-0.501" | 14 | __ | __ | Roll Pouch | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
| 0.124"-0.499", 0.126"-0.501" | 14 | __ | __ | Wood Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Spiral Flute | |||||||
| 0.124"-0.499", 0.126"-0.501" | 14 | Right Hand | Right Hand | Wood Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
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.
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.
Spiral | ||||||||
|---|---|---|---|---|---|---|---|---|
| Sizes Included | Number of Pieces | Includes | Spiral | Cut | Container Type | For Use On | Each | |
Cobalt Steel | ||||||||
Straight Flute | ||||||||
| 0.124"-0.499", 0.126"-0.501" | 14 | Seven Oversized and Seven Undersized Reamers | __ | __ | Wood Case | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 0000000 |
Spiral Flute | ||||||||
| 0.124"-0.499", 0.126"-0.501" | 14 | Seven Oversized and Seven Undersized Reamers | Right Hand | Right Hand | Wood Case | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |