Hex Shank Extension Bar for 7/16 Arbor of Bi Metal Hole Saw

Product description：1. Extension bar for Bi-metal hole saw to lengthen the reach of a drill. 2. Use for boring deeper holes.

Product Description

Procuct Name	Hex Shank Extension Bar for HSS Bi-Metal Hole Saw
Material	High Carbon Steel with Heat Treatment
Shank	Hex Shank
Length	5-1/2" (140mm) Extension for shank of 7/16''arbors 10" (250mm) Extension for shank of 7/16'' arbors 12" (300mm) Extension for shank of 7/16'' arbors 18" (450mm) Extension for shank of 7/16'' arbors
Surface Finish	Black Oxide
Features	1. Extension bar for Bi-metal hole saw to lengthen the reach of a drill. 2. Use for boring deeper holes.

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