Drill the holes to the right depth with ease with our 12mm high speed auger bit with built-in depth stop. Drill holes, insert sawdust mushroom spawn with specialized inoculation tool, and cover with melted wax.
Use with regular or high speed drill, or purchase with our specialized anger grinder adapter for use with an angle grinder. Auger bits enable faster drilling by expelling wood chips from the hole more efficiently. Round shank.