Two arms, heavy-duty.Made of special steel.Galvanised finish.Long reach.Especially suited for pulling ball bearings, pulleys and gears.Spare body.4537-1/B for 4537-1.4537-2/B for 4537-2.4537-34/B for 4537-3 and 4537-4.4537K Spare arm.Spare spindle.4532-OAB/S for 4537-1 (M14 x 1.5 x 135, SW 17, 190 g).4519-1/S for 4537-2 (M18 x 1.5 x 240, SW 19, 485 g).4519-2/S for 4537-3 and 4537-4 (G1/2" x 14 x 270, SW 22, 730 g).Perfectly suited for ball bearings, pulleys and gears