This Oregon 18" guide bar 183VXLGD025 and 22BPX074G chain combination features a .325" chain ideal for occasional commercial users. The low-vibration micro chisel cutters offer excellent performance, easy maintenance and low kickback. The AdvanceCut™ guide bar features a small radius multi-rivet nose for good durability and control. Fits Various Stihl Models equipped with a 18" bar and .325" pitch .063" gauge saw chain with 74 drive links Fits StihlFor saw sizes up to 62 ccPitch: .325", Gauge: .063", chain drive link count: 74Lubritec™ keeps your chain and guide bar oiled for less friction and longer lifeLighter weight means less fatigueLonger nose life and better performance with a new sprocket nose systemReduced rail wear and more precise cutting via better chain fitup