Base plate is made of 5/16" hot rolled steel, laser cut, fitted with rubber grips to hold the bolts snug and is cut with clearance for guided track clips. Anvil is made of 6061-T6 tempered aluminum with a hardened steel ball locked in for the bolt to press on. Anvil is locked in by 2 hardened shoulder bolts; worry-free from falling out or getting cocked. Drive bolt is grade 8 and is designed to fit perfectly on the anvil ball. A track clip tool that stands up to Woody's quality and durability. Effortlessly changes out track clips on lugs up to 2" tall. Tool can be used while track is still on sled. Top is made of case-hardened 1018 steel. Only two-piece unit. Made in the USA.