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Alvord Polk 131-0 High-Speed Steel Chucking Reamer, Straight Flute, Taper Shank, Uncoated (Bright)

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Product Specifications
Cutting Direction
Right Hand
Finish Types
Uncoated (Bright)
Shank Type
Morse Taper
Material Type
High Speed Steel
UNSPSC Code
23241611
Brand Name
Alvord Polk
Flute Type
Straight

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Currently showing 1-20 of 31 Next 11 »
1/4" Inch 0.2500" 6" 500 B002PHN92C yes $26.01 Buy Options
9/32" Inch 0.2812" 6" 501 B002PHN92M yes $28.92 Buy Options
5/16" Inch 0.3125" 6" 502 B002PHN92W yes $26.60 Buy Options
11/32" Inch 0.3438" 6" 503 B002PHN936 yes $30.60 Buy Options
3/8 " Inch 0.3750" 7" 504 B002PHN93G yes $28.43 Buy Options
13/32" Inch 0.4062" 7" 505 B002PHN940 yes $31.09 Buy Options
7/16" Inch 0.4375" 7" 506 B002PHN94A yes $29.46 Buy Options
15/32" Inch 0.4688" 7" 507 B002PHN94K yes $33.03 Buy Options
1/2 " Inch 0.5000" 8" 508 B002PHN94U yes $35.85 Buy Options
17/32" Inch 0.5312" 8" 509 B002PHN954 yes $37.07 Buy Options
9/16" Inch 0.5625" 8" 510 B002PHN95E yes $35.84 Buy Options
19/32" Inch 0.5938" 8" 511 B002PHN95O yes $39.96 Buy Options
5/8" Inch 0.6250" 9" 512 B002PHN95Y yes $38.90 Buy Options
21/32" Inch 0.6562" 9" 513 B002PHN968 yes $42.65 Buy Options
11/16" Inch 0.6875" 9" 514 B002PHN96S yes $40.79 Buy Options
23/32" Inch 0.7188" 9" 515 B002PHN972 yes $46.11 Buy Options
3/4" Inch 0.7500" 9-1/2" 516 B002PHN97C yes $46.35 Buy Options
25/32" Inch 0.7812" 9-1/2" 517 B002PHN97M yes $52.22 Buy Options
27/32" Inch 0.8438" 9-1/2" 519 B002PHN986 yes $58.01 Buy Options
7/8" Inch 0.8750" 10" 520 B002PHN98G yes $54.79 Buy Options

Key Features

  • Straight flute reamers are recommended for general purpose reaming to make minor enlargements to preformed holes with a very precise size and roundness
  • Straight flute reamers are good for use in through or blind holes without interruptions such as keyways (through holes extend through the entire workpiece, while blind holes do not)
  • The end of taper shank tools (held in a toolholder) is tapered to ensure accurate alignment of the tool in its socket and is self-holding (friction between the tool and the tool-holder prevents slippage)
  • Uncoated (bright) tools have no finish or coating. They are a good choice for general purpose applications
  • High-speed steel is a common general purpose steel for cutting tools, is compatible with a variety of materials, and tends to be lower in price than cobalt steel or carbide

Product Description

The Alvord Polk 131-0 straight flute chucking reamer (also called a machine reamer) is a general purpose, self-holding taper shank tool made of high-speed steel with no finish or coating, and is most commonly chosen for general purpose reaming. This tool can be used in a drill press, screw machine, lathe, or other good-quality toolholder.

Straight flute reamers are useful for uninterrupted cuts in general purpose applications. These reamers make small, circular, and precise enlargements to through and blind holes Taper shank tools can be self-holding or self-releasing based on the degree of taper – small tapers are self-holding within the toolholder, while large tapers are self-releasing and will easily release from the toolholder. The end of Morse taper shank tools (held in a toolholder) is tapered to ensure accurate alignment of the tool in its socket and is self-holding (friction between the tool and the tool-holder prevents slippage). Morse taper is one of the most widely used standards for self-holding tapers. High-speed steel is compatible with many materials and makes a good general purpose tool.

For reamers in the 131-0 series with 0.0280 – 0.1561 inches diameter there are four flutes, for 0.1562 – 0.5220 inches diameter there are six flutes, for 0.5221 – 0.8820 inches diameter there are eight flutes, for 0.8821 – 1.1950 inches diameter there are 10 flutes, and for 1.1951 – 1.5000 inches diameter, there are 12 flutes. Tolerances are +0.0002 -0.0000 inches for all reamers in the 131-0 series.

Reamers are used to finish existing holes. When holes are created using common applications like drilling or punching they often have minute imperfections. Their roundness may be flawed, or their diameter may be slightly smaller than required. Reamers are made to exacting tolerances, so they can correct such errors and create precisely round holes of exacting dimensions. Reaming is often used before tapping screw threads.

Alvord Polk manufactures a broad family of cutting tools, brushes, and tooling components, following ISO 9001 standards for quality and environmental impact of their products. Their offices and manufacturing facilities have been located in the United States since 1881.

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