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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
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.
Straight-flute reamers are for general purpose cutting.
Spiral-flute reamers create a smoother finish than straight flutes and work well in keyways and other applications with an interrupted cut. With a right-hand spiral, they pull chips upward as they cut, so they’re often used in blind holes.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
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Size | Dia. | Flute | Overall | Number of Flutes | Cut Direction | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||
Straight Flute | |||||||||
0.2490" | 0.2490" | 1 1/2" | 6" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Spiral Flute | |||||||||
0.2490" | 0.2490" | 1 1/2" | 6" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, 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.
For technical drawings and 3-D models, click on a part number.
Dia. | Lg. | ||||||||||
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Reamer Size | Reamer | Shank | Flute | Reach | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide | |||||||||||
0.2490" | 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 | 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.
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 | |||||||||
0.2490" | 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 | 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.
For technical drawings and 3-D models, click on a part number.
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" (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 |
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.
For technical drawings and 3-D models, click on a part number.
Spiral | |||||||
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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 |