A hex-shanked adaptor for hole saws of diameter 14-30mm. Shank: Hex 11
Laser 4002 1/4" Drive Ratchet With Bit & Socket Adaptor
Heller 4 Piece Drill Set for Masonry
Heller ProStone Masonry Drill Bit – 6mm
Heller HSS Bi-metal Hole Saw – 35mm
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Heller QuickBit Flat Wood Drill Bit – 8mm