The number one goal of ATI performance is to supply highquality racing products with a great team of innovative designers we are able to get better as a manufacturer and our ideas bring our products to a new level finally makes the end user the racers better at what they doFeatures. Crankshaft pin drill fixture kits are designed to pin the crankshaft. Used for highrpm supercharged turbocharged or highhorsepower nitrous oxide engines. Eliminating the damper twist on the shaftSpecifications. Finish Black Oxide. Material Steel. Inside Diameter 1438. Drill Pin Fixture Drill Bit Size 1164