Hole Saw Arbor Extension 22" Extra Long Allows 7/16" Hex Arbors to be Used with an SDS Plus Drill Will NOT Accept SDS Fittings only Accepts 7/16 Hex Arbors but Fits an SDS Plus Drill

These 22" Hole Saw Arbor Extensions are custom made from 2 x 12 inch Hole Saw Extension Bits with 7/16" Hex Female to SDS Plus Shank. Use with 7/16" (11mm) Hex Arbor for Holesaws to Drill Deep Holes in Concrete Brick and Wood Hex Key Included to Lock Arbor in place. Heat Treated 12 inch SDS Plus Extension Fits Any 7/16" Hex Shaft Hole Saw Arbor - Hex Screw Secures and Tightens Hex Shaft of Arbor or 7/16" Drill Attachment. Use Arbor Extension Bit with our Tungsten Carbide Grit Edge Hole saws To Drill Deep Holes in Concrete Masonry And Brick Walls. Note 3/8 inch Female to Male Hex and 7/16 inch Female to Male Hex are Also available. Plumbers Tools for Drilling Holes for Pipes to go through walls. and Electricians Tools for Drilling Holes through walls for electrical wires and conduit.