Alvord Polk 661-2 High-Speed Steel Repairman's Deburring Reamer, Left Hand Spiral Flute, Brace Shank, Uncoated Finish, 1/4 Inch Point Diameter, 2-17/64 Inch Large End Diameter

Alvord Polk 661-2 High-Speed Steel Repairman's Deburring Reamer, Left Hand Spiral Flute, Brace Shank, Uncoated Finish, 1/4 Inch Point Diameter, 2-17/64 Inch Large End Diameter
by Alvord Polk

New!: $439.70 $331.91 (as of 02/24/2013 15:12 PST)

Bridge & Construction Reamers

The Alvord Polk 661-2 left-hand spiral flute repairmen’s reamer is a brace shank tool made of high-speed steel with no finish or coating, and is most commonly chosen for deburring an existing hole. They can also be used to countersink or enlarge a hole.

Left-hand spiral reamers are useful for interrupted cuts and in through 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. Left-hand spiral style tools also push chips ahead of the tip of the tool, instead of pulling chips out of a hole. Left-hand spiral reamers are also useful for reaming through holes, since pushing chips into the hole can cause clogging, which may damage the tool. High-speed steel is a general purpose steel for cutting tools and is compatible with many metalworking materials. It is often lower in price than other cutting tool materials.

For reamers in the 661-2 series with 3/16 inches point diameter and 47/64 inches large end diameter there are six flutes, for those with 3/16 to 1/4 inches point diameter and 1-1/4 to 1-15/32 inches large end diameter there are 10 flutes, and for those with 1/4 inches point diameter and 2-17/64 inch large end diameter there are 12 flutes.

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.

• Rank: #44124 in BISS
• Size: 1/4" - 2-17/64"
• Brand: Alvord Polk
• Model: 03754
• Number of items: 1

• Left-hand spiral reamers are good for use in through holes (holes that extend all the way through a workpiece), as they push chips ahead of the tool and into the hole
• Spiral flute reamers are recommended for reaming holes with interruptions, as they prevent damage to the workpiece edge and tool
• Brace shank tools have a tapered square profile, which most toolholders can grasp efficiently and without slipping as much as round shanks
• 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

Description #1 by AmazonSupply.com:

Alvord Polk 661-2 High-Speed Steel Repairmen's Deburring Reamer, Left Hand Spiral Flute, Brace Shank, Uncoated (Bright). Left-hand spiral reamers are good for use in through holes (holes that extend all the way through a workpiece), as they push chips ahead of the tool and into the hole. Spiral flute reamers are recommended for reaming holes with interruptions, as they prevent damage to the workpiece edge and tool. Brace shank tools have a tapered square profile, which most toolholders can grasp efficiently and without slipping as much as round shanks. 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.

Description #2 by AmazonSupply.com:

Alvord Polk 661-2 High-Speed Steel Repairmen's Deburring Reamer, Left Hand Spiral Flute, Brace Shank, Uncoated (Bright). Left-hand spiral reamers are good for use in through holes (holes that extend all the way through a workpiece), as they push chips ahead of the tool and into the hole. Spiral flute reamers are recommended for reaming holes with interruptions, as they prevent damage to the workpiece edge and tool. Brace shank tools have a tapered square profile, which most toolholders can grasp efficiently and without slipping as much as round shanks. 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.

Description #3 by AmazonSupply.com:

Alvord Polk 661-2 High-Speed Steel Repairmen's Deburring Reamer, Left Hand Spiral Flute, Brace Shank, Uncoated (Bright). Left-hand spiral reamers are good for use in through holes (holes that extend all the way through a workpiece), as they push chips ahead of the tool and into the hole. Spiral flute reamers are recommended for reaming holes with interruptions, as they prevent damage to the workpiece edge and tool. Brace shank tools have a tapered square profile, which most toolholders can grasp efficiently and without slipping as much as round shanks. 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.