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Tool Steel Adjustable-Size Reamer

Manufacturer part: 2987A19

Finish holes to precise inch, metric, wire gauge, or letter sizes with these reamers.Adjustable Size, Square Shank—Finish multiple hole sizes with one reamer by moving the adjustable blades within the diameter range. Convenient for maintenance work, these have a large diameter range and don't require powered tools. They're often used to make precise size adjustments during installation of bearings and bushings.Move the blades by tightening and loosening the two nuts on the reamer. To measure size, adjust blades to a known size (such as a bushing or ring), or measure across two opposite blades with a micrometer. When the blades become worn, they can be reground or replaced.Turn these reamers by hand with an adjustable wrench or straight-handle tap wrench (sold separately).Extension pilots (not included) can be used in place of the end adjustment nut to align holes that are spaced far apart.Angled Blade—These reamers are better than those with straight blades for finishing holes with breaks in the surface, such as a keyway.Tool Steel—Typically more economical but less durable than high-speed steel, these are for general purpose reaming.

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