Eagle Tool US Serrated Flex 1 4 in Woodboring Flex Drill Bit Batteries 75 Deadbolt trim ring diameter 75 Deadbolt trim ring diameter (in Pressure control technology warns user when excessive pressure is applied 8 Detail attachments for various sanding projects Micro filtration captures and contains fine dust particles Clear view dust canister removes guess work of when to empty canister Tool less attachment system for quick and easy attachment changes 3 Position nose detail for maximum use of abrasive Soft grip design for added comfort and control Dust sealed switch for extended tool life ETHXKIT187 Bit Diameter (Inches) 1 4 in 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