Otis Technology Soft Vise Jaws - General Use Gun Metal .625in and .750in. Most people use a vise to do this and the Otis Technology General Use Soft Vise Jaws are the perfect addition to your Gunsmithing Tools. Made of a non-slip rubber material these vise jaws are perfect for weapons because they won't scratch or damage your weapon's frame. Standard vise jaws are made of metal which can scratch the finish off your weapon. However with these rubber vise jaws that fit light-duty to large heavy-duty vises you can replace your weapon's muzzle device swap in a new barrel and make all the modifications you need. Plus the rubber is oil solvent and alcohol resistant so you can easily wipe it clean after use. Specifications for Otis Technology General Use Soft Vise Jaws: Manufacturer: Otis Technology Size: 4 in Fabric/Material: Rubber Color: Black Quantity: 1 Pair Gun Make: Universal Gun Model: Universal Length: 4 in Features of Otis Technology General Use Soft Vise Jaws Features a flat surface perfect for firearm receivers and slides to be clamped with even pressure Features barrel channels sized .625in and .750in for secure clamping of round objects such as bolts and barrels Composed of a non-slip rubber material Hard enough to keep even the smallest parts clamped yet flexible enough to mold to the various shapes of a firearm Features top lip to protect firearm and in conjunction with embedded magnets holds jaws to the vise Will not mar or scratch gun metals Oil solvent and alcohol resistant and easily wipes clean Designed for light duty vises up to large heavy duty vises (minimum vise jaw measurement is 4inL x 0.5inH) Package Contents: Otis Technology General Use Soft Vise Jaws What firearm models does the manufacturer say Otis Technology General Use Soft Vise Jaws is compatible with? The manufacturer suggests that Otis Technology General Use Soft Vise Jaws is compatible with UniversalOtis Technology FG-VSJ-GEN: Soft Vise Jaws - General Use Gun Metal .625in and .750in