Rotary 12358. GENUINE Carlton 20-42-A372-PS  20" PREMIUM SPROCKET TIP BAR 3/8" Pitch, .063" gauge.

Very Nice!  Made in Germany.  If you want quality, here you go.  Replaceable sprocket tip.

Fits the following chainsaws with 3/8" Drive Sprockets:

• STIHL GAS POWERED 024, 026, 026 PRO, 028, 028 SUPER, 029, 030, 031, 032, 034, 034 SUPER, 036, 036 PRO, 038, 038 SUPER, 038 MAGNUM, 039, 040, 041, 042, 044 MAGNUM, 045, 046, 046 MAGNUM, 048, 056, 064, 066, 066 MAGNUM, MS 240, MS 241, MS 260, MS 260 PRO, MS 261, MS 270, MS 270 WOOD BOSS, MS 271, MS 280, MS 281, MS 290, MS 290 FARM BOSS, MS 291, MS 310, MS 311, MS 340, MS 341, MS 360, MS 361, MS 362, MS 380, MS 381, MS 390, MS 391, MS 440, MS 440 MAGNUM, MS 441 MAGNUM, 460 MAGNUM, MS 460 R, MS 650 MAGNUM, MS 660 MAGNUM,
• STIHL ELECTRIC CHAINSAWS E 15, E 20, E 220
• LOGOSOL ELECTRIC SAWMILLS E4000, E5000, E8000

Replaces:
OREGON 203RNDD025

SF