OREGON 75DP025U 25-Feet Reel of S-70 Semi Chisel Chain, 3/8-Inch Recommended saw size: 50 to 100cc, bar length: 16"-36" (41-91cm) 75dp: 3/8" pitch, .063" gauge Round-cornered "semi-chisel" cutters work fast and are more tolerant of sharpening errors (typically) than most cutter types Bumper drive links help reduce kickback Warning: oregon 72,73,75dp; (s-70) chain may be capable of kickback that could result in serious injury to the saw operator or bystanders