MOTORCYCLE TOOL Hex Allen Axle YAMAHA R1 R6 YZ YZF Four metric hex sizes: 17, 19, 22 and 24mm 3/8 square drive on both ends Steel heavy duty heat treated 4130 chrome-moly construction ideal for shop or home use 6oz Maximum torque 150 lbs on 3/8" square drive YAMAHA: R1, R6, YZ, YZF