Technical Specification Hole Saw Product Grouping Hole Saw Accessories Item Pilot Drill Bit Shank Size 1/4 Shank Shape 3-Flat Fits Hole Saw Dia. All Pilot Drill Size 1/4 dia. x 4 L Material High Speed Steel Replacement Pilot Drill No. Mfr. No. 49-56-8000 Overall Length 4 For Use With Milwaukee Hole Saws This listing is for each. Type:Hole Saw Arbor UNSPSC:27112800 Length:4 in ECCN:EAR99 Country of Origin:CN - China