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Alvord Polk 131-1 High-Speed Steel Chucking Reamer, Right Hand Spiral 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
Right Hand Spiral

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Price  
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Currently showing 1-20 of 33 Next 13 »
1/4" Inch 0.2500" 6" 1500 B002PHNCCY yes $27.68 Buy Options
9/32" Inch 0.2812" 6" 1501 B002PHNCD8 yes $31.07 Buy Options
5/16" Inch 0.3125" 6" 1502 B002PHNCDI yes $28.33 Buy Options
11/32" Inch 0.3438" 6" 1503 B002PHNCDS yes $29.83 Buy Options
3/8 " Inch 0.3750" 7" 1504 B002PHNCE2 yes $30.40 Buy Options
13/32" Inch 0.4062" 7" 1505 B002PHNCEC yes $33.79 Buy Options
7/16" Inch 0.4375" 7" 1506 B002PHNCEM yes $30.58 Buy Options
15/32" Inch 0.4688" 7" 1507 B002PHNCEW yes $32.12 Buy Options
1/2 " Inch 0.5000" 8" 1508 B002PHNCF6 yes $38.63 Buy Options
17/32" Inch 0.5312" 8" 1509 B002PHNCG0 yes $40.35 Buy Options
9/16" Inch 0.5625" 8" 1510 B002PHNCGA yes $37.07 Buy Options
19/32" Inch 0.5938" 8" 1511 B002PHNCGK yes $40.26 Buy Options
5/8" Inch 0.6250" 9" 1512 B002PHNCGU yes $42.37 Buy Options
21/32" Inch 0.6562" 9" 1513 B002PHNCH4 yes $46.55 Buy Options
11/16" Inch 0.6875" 9" 1514 B002PHNCHE yes $44.41 Buy Options
23/32" Inch 0.7188" 9" 1515 B002PHNCHO yes $53.00 Buy Options
3/4" Inch 0.7500" 9-1/2" 1516 B002PHNCHY yes $50.37 Buy Options
25/32" Inch 0.7812" 9-1/2" 1517 B002PHNCII yes $51.03 Buy Options
13/16" Inch 0.8125" 9-1/2" 1518 B002PHNCIS yes $52.26 Buy Options
27/32" Inch 0.8438" 9-1/2" 1519 B002PHNCJ2 yes $63.23 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 131-1 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.

Right-hand spiral reamers are useful for interrupted cuts and in blind holes. Spiral reamers prevent whole flute contact with the leading edge in an interrupted cut, as in a keyway. This prevents damage to the interruption and reamer flute. Right-hand spiral style tools also pull chips away from the tip of the tool, instead of driving chips in front of the tool. Right-hand spiral reamers are commonly used in blind holes, since pulling chips out of the hole prevents clogging, which may cause tool damage 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 131-1 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 131-1 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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