0.3125" Reamers | McMaster-Carr

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System of Measurement

Reamer Diameter

0.2500" to 0.2813"

0.2813" to 0.3125"

0.3125" to 0.3438"

0.3438" to 0.3750"

0.3750" to 0.4063"

0.4063" to 0.4375"

0.4219" to 0.4531"

0.4219" to 0.4688"

0.4375" to 0.4688"

0.4375" to 0.5000"

0.4688" to 0.5313"

0.5000" to 0.5625"

0.5313" to 0.5938"

0.5625" to 0.6250"

0.5938" to 0.6563"

0.6250" to 0.6875"

0.6563" to 0.7188"

0.6875" to 0.7500"

0.7188" to 0.7813"

0.7500" to 0.8125"

0.7813" to 0.8438"

0.8125" to 0.8750"

0.8438" to 0.9375"

0.8750" to 1.0000"

0.8750" to 1.1250"

0.9375" to 1.0625"

1.0000" to 1.1250"

1.0625" to 1.1875"

1.1250" to 1.2500"

1.1875" to 1.3438"

1.2500" to 1.4375"

1.3438" to 1.5313"

1.4375" to 1.6250"

1.5313" to 1.7813"

1.6250" to 1.8750"

1.7813" to 2.0938"

1.8750" to 2.1875"

2.0938" to 2.4688"

2.1875" to 2.5625"

2.5625" to 3.0000"

Flute Type

Reamer Fractional Size

For Use On

Stainless Steel

Shank Type

Number of Flutes

Material

Carbide-Tipped Tool Steel

Reamer Type

For Dowel-Pin Holes

For Hole Alignment

Overall Length

Shank Diameter

Spiral Direction

Flute Length

Number of Pieces

Sold As

Reamer Operation

Container Type

Finish

Titanium Nitride (TiN) Coated

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

DFARS Specialty Metals

REACH

For Dowel Pin Diameter

Length Class

Square Shank Size

Pilot Diameter

How can we improve?

26 Products

Reamers

Reamers

Finish most holes to precise inch, metric, wire gauge, or letter sizes

Reamers for Hole Alignment

Reamers for Hole Alignment

Enlarge holes to correct misalignment and overlap

Reamers for Dowel-Pin Holes

Reamers for Dowel-Pin Holes

Undersized with a slight taper so pins fit snugly when installed

Reamer Sets

Finish holes of various diameters to precise inch, metric, wire gauge, or letter sizes

Other Products

Reamer Drill Bits

Reamer Drill Bits

Drill and finish holes in one pass

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)