Forstner Bit Extension Size:3/8" Even the best lathes cannot

Even the best lathes cannot stop vibration inherent in the wood

and routes easily through tight shop spaces

leaves a flat bottomed mortise

Lynx 12" backsaw

Forstner Bit Extension Size:3/8" Even the best lathes cannotForstner bit extensions solve one of the major problems with forstner Bits their limited depth capacity. This extension fits WoodRiver forstner bits only that have 3 8" diameter shanks. Features: Designed for use with WoodRiver forstner bits only Extension adds 2 1 2" to length of forstner bit For use with forstner bits 7 8" or larger Socket accepts forstner bits with 3 8 diameter shanks Forstner bit held in extension socket with two set screws 3 8