GB Arbor Pro are a professional replacement nose bar designed for commercial users. Ideal for small - medium chainsaws.  GB Arbor-Pro features a one piece solid steel body specially heat treated and hardened. Its high-tech nose sprocket runs on precision Swiss bearings. 

• Length 20 inch
• Drive link count 72
• Pitch 3/8"
• Gauge .050"
• Mount EX - D176
• Model EX20-50MG

Fits chainsaw models with 3/8" pitch drive sprocket fitted*.

ECHO: 60, CS451, CS452, CS500, CS5000, CS501, CS510, CS550, CS5500, CS5501, CS600, CS601, CS602, CS610, CS650, CS660, CS670, CS6700, CS6701, CS6702, CS701, CS702, CS706, CS750, CS8000, CS8001, CS801, CS802

GREEN MACHINE: 7600, 7700

JOHN DEERE: 50AV, 50V, 51SV, 55SV, 55V, 60V, 65, 65SV, 66SV, 70V, 800V, 8EV

POULAN & POULAN PRO: 203, 245, 2900, 306, 3400, 360, 3600, 361, 365, 3700, 375, 380, 380, 3800, 3900, 395, 400, 4000, 4200, 4400, 450, 4900, 5000, 5200, 5400, 5500, 6000, 670

REDMAX - ZENOAH: G56AVS, G621AVS

RYOBI: 62, GTS 56

TAS-TANAKA: 505, 506, 650, 655

*Please check your chainsaw drive sprocket is 3/8" pitch.