Overview Reviews Product Description Measurements Cutting Diameter 6.35 millimeters Item Dimensions 5.8 x 1.9 x 0.7 inches Minimum Bore Diameter 22.2 millimeters Materials & Care Material Type Cobalt Steel Finish Types Aluminium Shank Type Hex Surface Recommendation Aluminum,Copper,Stainless,Steel Features & Specs Cutting Angle String 118 degrees Tool Flute Type Straight Point Style Split Point Number of Flutes 2 Product Videos Custom Field Condition New Product Reviews Write a Review Write a Review × Greenlee Greenlee 625-001 Pilot Drill Bit 1/4 In Dia Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *