drill bit tip holders
greenlee 332 901 12 02706 1 4 inchx12 inch bit exten
extend bit lengths holesaw arbors spade bits nail eater ii bits electricians bits and step bits use for boring deeper in wood length 12 head diam 9 16 hole diam 1 4 shank diam 1 4 shank type hex type bit extension sku orsno43580
greenlee