Depth Gauge File Guide 3/8”/Progressive Depth gauge Tool/ Chainsaw Raker Depth Gauge For Husqvarna depth gauge is essential in maintaining the raker (depth gauge) on saw chain. This depth gauge for 3/8 pitch chain. Specially designed chainsaw depth gauge tool that give the correct filing angles, use together with flat files. With the correct raker clearance, you get the maximum performance. Makes Chainsaw Cut Smooth It is a helpful tool for adjusting your raker depth. Your chainsaw will cut better, and be smoother with the rakers set up properly. Two settings Each depth gauge tool has setting for hard or soft wood. For cutting soft materials like cedar, you can drop the depth to 0.04 inch (0.9 mm) even with a new chain. For cutting hardwoods, like cypress with 0.03 inch (0.7 mm) depth for efficient cutting. Easy to Use Simply position this tool over the cutter and use a depth gauge file to remove any part of the raker above the slot.