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Machine Reamers

Machine Reamers

Sometimes called chucking reamers, machine reamers are placed in the chuck of a drill press, lathe, screw machine, or similar machining tool to enlarge, smooth, or dimension a drilled hole to a tight tolerance. They usually have a 45° chamfer to help ensure accurate entry into the hole.

Straight Flute

The most common style of reamer, straight-flute reamers push chips forward into the hole and are recommended for reaming through holes.

Bright (Uncoated) — High Speed Steel

Fractional Inch — Right Hand Cut

Wire Gauge — Right Hand Cut

Letter — Right Hand Cut

Decimal Inch — Right Hand Cut

Metric — Right Hand Cut

Bright (Uncoated) — Cobalt Steel

Fractional Inch — Right Hand Cut

Letter — Right Hand Cut

Decimal Inch — Right Hand Cut

Metric — Right Hand Cut

Spiral Flute

Use spiral-flute reamers for reaming applications with interrupted cuts, such as creating keyways.

Bright (Uncoated) — Cobalt Steel

Fractional Inch — Right Hand Cut

Letter — Right Hand Cut

Bright (Uncoated) — High Speed Steel

Metric — Left Hand Cut

Fractional Inch — Right Hand Cut

Decimal Inch — Right Hand Cut

Dowel Pin Size

These reamers are sized for reaming holes to ensure a snug fit when installing dowel pins.

Bright (Uncoated) — High Speed Steel

Decimal Inch — Right Hand Cut

Morse Taper Shank

Reamers with Morse taper shanks can be directly inserted into the spindle of a compatible drill press or lathe or into an adapter such as a Morse taper sleeve or socket, allowing the tool to be installed and changed out easily. Taper shank reamers are self-locking; the friction between the shank and the tool holder keeps the tool in place and transmits torque from the machine to the tool. They provide accurate centering and are commonly used in metalworking and high-torque applications.

Bright (Uncoated) — High Speed Steel

Fractional Inch — Right Hand Cut

Carbide Tipped

Featuring a carbide tip, these reamers offer the strength and wear resistance of carbide steel on just the cutting edge for when you don't need the full strength and rigidity of a solid carbide tool.

Bright (Uncoated) — Carbide-Tipped

Fractional Inch — Right Hand Cut

Decimal Inch — Right Hand Cut

Metric — Right Hand Cut

High-Performance Solid Carbide

Solid carbide reamers provide good wear resistance when machining the toughest materials, such as cast iron, nonferrous alloys, and glass, but they require rigid tool setups because they are brittle.

Best for Stainless Steel, Heat-Resistant Alloys, Graphite & Nonferrous Metals

Non Coolant-Through — Straight Flute

Metric — Right Hand Cut

Best for Steel & Cast Iron

Coolant-Through — Straight Flute

Metric — Right Hand Cut

Coolant-Through — Spiral Flute

Metric — Right Hand Cut

Best for Steel, Cast Iron & Nonferrous Metals

Coolant-Through — Straight Flute

Metric — Right Hand Cut

Coolant-Through — Spiral Flute

Metric — Right Hand Cut

Best for Stainless Steel

Coolant-Through — Straight Flute

Metric — Right Hand Cut

Coolant-Through — Spiral Flute

Metric — Right Hand Cut

Best for Graphite

Non Coolant-Through — Straight Flute

Metric — Right Hand Cut

Sets

Machine reamer sets provide a selection of reamers in a range of sizes and include a box or pouch for storing or organizing the tools when not in use.

Bright (Uncoated) — High Speed Steel

Straight Flute — Standard Type

Fractional Inch

Wire Gauge

Metric

Straight Flute — Drill-Length Type

Fractional Inch

Letter

Wire Gauge

Spiral Flute — Standard Type

Fractional Inch

Spiral Flute — Drill-Length Type

Fractional Inch