Dial Micrometer for Ammco Twin Cutter 6950 & 6900 Brake Lathes Steel construction and features inch and metric measurments. Interchange Part #: Ammco # 906907 Part #: 7907 WE ALSO CARRY OTHER TIRE CHANGER, WHEEL BALANCER, BRAKE LATHE AND ALIGNMENT SHOP TOOLS. CHECK OUT OUR eBay STORE FOR MORE INFORMATION.