Simpson 1 4" x 2 3 4" Titen HD Heavy Duty Screw Anchor Crack Repair improving cut quality and increasing improving cut quality and increasing control at the router table 5 piece set saves up to 20% compared to purchasing blades individually a cost efficient solution that equips pros with a variety of blade lengths and tooth configurations ready for multi material job site conditions without overspending Specialized heat treating process creates tip hardness for better cutting during installation without compromising the ductility of the carbon steel body Straightforward installation with standard tooling because no special drill bit is needed and the hex washer head requires no additional hardware