Herr 3/8-6  Clutch Drum N217 M6 Chainsaw Spur Sprocket, no bearing.

Fits -

Husqvarna 33, 34, 35, 37, 38

Jonsered 36, 361, 365, 370

Skil 310, 944, 1600, 1601, 1602, 1610, 1611, 1612-ELECTRIC, 1613, 1614, 1616, 1700, 1705, 1712

Pioneer - P10, P12