Pitch: 3/8" Low Profile, gauge: .043", 100ft ReelPrecision, heat-treated semi-chisel chain duo cuts smoothly with a higher tolerance for debrisBuilt-in Lubri-Tec automatic oiling system extends the life of your chain by delivering oil to key parts of the chain so you can work smarter with less downtime and maintenanceTough, long-lasting chrome outer layer and hardened rivets help reduce wear and allow for fewer chain adjustmentsFor pole saw sizes up to 42 ccThe Oregon 90PX100U AdvanceCut Saw Chain reel contains 100 feet of 90PX chain, an ideal choice for landscapers and homeowners who use small, low powered saws. The .043" gauge narrow kerf cutting systems increase efficiency since they need less power from the saw than standard cutting systems. The low-vibration low kickback Chamfer Chisel cutters' have twin cutting corners which offer outstanding performance. Similar to round corners, these twin cutting corners are durable, easy to maintain and forgiving. Compatible fit with Stihl 61PMM3 100R.