Simply the best chainsaw bar made. If you are serious about the equipment you run, this is the bar for you. All bars are hand made from the finest steel, which is cold rolled, heat treated, annealed, stress relieved and surface ground to provide the best possible characteristics of wear resistance, strength, durability, straightness and elasticity. Rails are hand ground, not milled, to an accuracy of .002 of an inch for straighter cuts. Rails are also flame hardened to 5 points more than the saw chain itself. Comes with a single rivet replaceable sprocketnose. The results are obvious. You get hand made quality that leads to less downtime and frustration. Try one and you will see why WoodlandPRO is your best professional choice.This bar uses 81 drive links of .325 pitch x .063 chain - WPL 20 23RC81 or .375 pitch x .063 chain WPL 20 33RC72 Fits the following chainsaws: 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