Check the listing for details. SOLID CARBIDE Chainsaw Chain for 20" Stihl 33R-72 3/8"- 050 #72 Link SEE VIDEO. Condition: New. Listed at 61.98 USD. PlasmDyn - SOLID Carbide Chainsaw Chain 33R-072 Series - 3/8 pitch 0.050 gauge - 72 Drive Link Full Profile - Semi Chisel Chain - Very Aggressive Teeth Chain Specifications: Bar Length: 20" Pitch: 3/8" Gauge: .050" Drive Links: 72 This Chain will fit the following Stihl chainsaws with the above chain Specs: MS290 MS291 028 034 036 038 039 041 044 056 064 Husqvarna 55 Rancher 257 261 357XP 359 455 61 160 162 260 and others using FULL PROFILE - 3/8 pitch .050 Gauge chain Fit's models Stihl & most saws with 20" Bar including Stihl®, Husqvarna®, Echo®, Poulan® Etc. Note: some Stihl saws have 325 pitch chain so make sure this is the correct pitch - if this chain will not fit or you need help please contact us - WE HAVE YOUR CHAIN All Sizes Available - contact us for details