Champion Cutting Tool Brute Platinum Car/Maintenance Reamer: SA80-5/8 Brute Platinum heavy duty high speed steel reamers enlarge and align existing holes through steel, stainless steel, tough alloys, and aluminum 1/2" Straight Shank for use in 1/2" Chuck Power Tool Left Hand Helix/Right Hand Cut sheers chips away from operator Features safety collar stop to prevent over penetration and operator loss of stability Popular applications include mainteance use in steel erection/fabrication, and automotive (truck & trailer) industries