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Extra-Long Angle-Blade Adjustable-Size Reamer

Manufacturer part: 3027A12

Enlarge holes to correct misalignment and overlap. Misaligned holes often have a narrow entry, so the tapered shape is easier to insert and makes more contact to remove the overlapping material. These are also known as bridge and car reamers.Adjustable Size, Square Shank—One tool both finishes multiple diameters and enlarges holes to correct misalignment and overlap. Also known as bridge and car reamers, they have a tapered shape that fits into the narrow entry of misaligned holes and makes more contact to remove the overlapping material. Change the reamer size by moving the adjustable blades within the diameter range.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).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.Long Reach—Align holes spaced far apart with reamers that have a long, built-in pilot. A floating sleeve guides and steadies the pilot through holes.

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