3/8" Size 5/16" Shank 5/32" Pilot Hole Diameter High Speed Steel Interchangeable Pilot Type Counterbore JIG When used with the included

When used with the included adapter

greater toughness than M2 high speed steel

Available in 36+ grit for medium and high-pressure applications like gate grinding and other heavy grinding

tooling arm

engine cylinder shaft bore 5/8 & 7/8 available

3/8" Size 5/16" Shank 5/32" Pilot Hole Diameter High Speed Steel Interchangeable Pilot Type Counterbore JIG When used with the included3 8" Size 5 16" Shank 5 32" Pilot Hole Diameter High Speed Steel Interchangeable Pilot Type Counterbore Interchangeable Pilot Type Counterbores from TTC Production. Presenting here are short series of counterbores to enlarge holes on any ferrous or non ferrous workpiece. Ask any small job machinists and they will recommend you TTC counterbores for your machining requirements. These bars are made up of high speed steel and last long in industrial