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Reamers
Enlarge holes to exact inch, metric, wire gauge, or letter sizes. Reamers also smooth the walls of holes. Note: Never rotate the reamer in the reverse direction of the cut. This will ruin its accuracy.
For technical drawings and 3-D models, click on a part number.Round Shank
The most common shank type, it fits in the chuck of drill presses, turret lathes, and other machine and power tools. Also known as chucking reamers.
Use high-speed steel reamers for general purpose reaming on a wide variety of materials.
Cobalt steel reamers offer better heat and abrasion resistance than high-speed steel reamers to run up to 25% faster for a longer tool life. They're commonly used on hard-to-machine materials such as nickel alloys, stainless steel, and titanium.
Right-hand spirals pull chips upward as they cut, so they’re often used in blind holes.
Reamer Size | Reamer Diameter | Material | Flute Length | Overall Length | Number of Flutes | Spiral Direction | Cutting Diameter Tolerance | For Use On | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Straight flutes are used for general purpose cutting. Since chips are forced forward into the hole, they perform best in through-hole applications. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 3/64" | 0.0469" | High-Speed Steel | 1/2" | 2 1/2" | 4 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 2995A112 | $17.33 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/64" | 0.0469" | Cobalt Steel | 1/2" | 2 1/2" | 4 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 2975A19 | 22.10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Spiral flutes clear chips better than straight flutes. The choice for keyways and other applications with a break in the hole's surface. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 3/64" | 0.0469" | High-Speed Steel | 1/2" | 2 1/2" | 4 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3106A09 | 19.71 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||