Eagle Tool US Serrated Flex 1 4 in Woodboring Flex Drill Bit 12 in x 12 in Tile 035 in thickness (approx 91111 035 in thickness (approx Q: What is the finish on this design Split point for better starting and serrated body for aggressive cutting Heat treated spring steel shank with wire fishing accommodation holes in the head and shank Good flexibility in 54 inch shank Made in the USA Add a quick switch hex to adapt to a quick change chuck Compatible with 3 16 inch shank extensions Series Name Serrated Flex Bit Sub Brand N A Bit Type Flex bit Bit Length 54 in Shank Size 3 16 in Shank Type 3 flat Material High carbon steel Case Type Hard Quick Change No For Use With Power tool For Use on Metal No For Use on Wood Yes Warranty 30 day Set Individual Individual Package Quantity 1 CA Residents: Prop 65 Warning(s) Yes Brand Model Compatibility EX18736