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Hole Saw Extension, Bi-Metal, 12-In.

Master Mechanic

Master mechanic, 12", bi-metal, hole saw extension, 7/16" shank extension fits master mechanic white 1 piece bi metal hole saws & mandrels, also designed to fit any 3/8" round or hex shank tool, the 12" length is for drilling deep holes or for hard to reach areas.

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