Double End Solid Carbide Drills & Countersinks from Rushmore. With this unique double design housing, machinists can save on valuable tool change time. Fine-grain, C2 grade Solid Carbide can withstand high friction temperatures upto 400° C. The spiral flute are arranged to offer right-hand (clockwise direction) cuts. This center drill tool's purpose is mainly to drill and enlarge the opening of a hole on a wide range of workpiece materials including Steel, Stainless Steel, Non-Ferrous, Cast Iron, producing a flat bottom for a socket-head screw to fit flush with the surface. This tool can be simultaneously used to remove the burr on the drill hole for safety and/or optical reasons. The selection of the right countersink angle depends on the application and works well with low cutting speed. Rushmore offers combined drills & countersinks in standard sizes of included angles 60° for specific applications. The bright-finished, round shank body comes in diameter sizes of 1/8", 3/16", 1/4", 5/16", 7/16", 1/2", 5/8", and 3/4". Shank diameter tolerances are at +0.000/-0.001". Models are available in overall length of 1-1/2", 2", 2-1/2", 2-3/4", 3", 3-1/2" and 4". Drill diameter tolerances are at +0.003 / -0.000". Rushmore USA Tools offers quality affordable American-made tooling with the superior speed and feed that your applications require. Rushmore's end mills are perfect for all aerospace, medical, automotive, or production machining solutions.
Applications
Used for producing center holes in components or workpieces which require machining between centers.