KAK Industry Multi Position Dimple Drill Jig Features The KAK Industry Multi Position Dimple Drill Jig is machined from 4140 thru hardened steel a tool steel chosen for its ability to resist wear from repeated use against hardened barrel steel. Finished in a black phosphate coating the jig resists corrosion while standing up to shop use over time. It is designed specifically for use with .750 inch diameter barrels giving builders a dedicated tool rather than a generic one-size-fits-all jig. Multiple drilling positions allow the jig to accommodate different gas block placement requirements across various barrel lengths and configurations. KAK Industry was founded in 2011 to address a gap in the firearms market for quality American-made components at affordable sustainable prices and this jig reflects that founding mission. Dimpling a barrel correctly is an important step for securing a set-screw style gas block and a dedicated jig like this one helps ensure the dimple is placed accurately and consistently. Builders assembling custom AR-platform rifles will find this tool a worthwhile addition to their bench for repeatable results. The black phosphate finish and durable steel construction mean this jig is built to last through many builds over its service life. KAK Industry Multi Position Dimple Drill Jig Specifications Manufacturer: KAK Industry Model: Multi Position Dimple Drill Jig Type: Tool Color: Black Material: 4140 Hardened Steel Compatible Hosts: .750 Barrels Available At: GrabAGun