• Used for enlarging existing drilled or formed holes in structural steel plates
• Aggressive fast spiral reamers made of high tungsten tool steel for maximum life
• Gold and black surface treated body and clearance, cuts cooler and stays sharp longer
• Right hand cut with left hand spiral prevents tool from hogging into the hole
• Three flat shanks prevent slippage in chuck
• Stop collar reduces possibility of impact damage to chuck
• Ideal for reaming applications on truck frames, bridges, pressure vessels and rail cars
