All Industrial 49681 | R8 to 2JT R8 Shk Drill Chuck Arbor Fits Bridgeport JT2
R8 shank to Jacobs Taper #2 (2JT). Works great on a Bridgeport or any other machine tool with that takes R8 tooling. Long end is the R8 shank, short end is 1JT. Made of precision ground, high grade tool steel.