Drill and Burr Series Offers Various Geometries for MRO
Dormer Pramet has released a selection of HSS drills and carbide rotary burrs designed to meet the needs of the maintenance and repair professional.
The Precision Twist drill brand of cutting tools by Dormer Pramet has released a selection of affordable HSS drills and carbide rotary burrs under the name PrecisionLight, designed to meet the needs of the maintenance and repair professional.
The HSS drill family includes lengths categorized as “screw machine,” “jobber” and “mechanics” as well as reduced-shank versions. Said to provide both versatility and performance in a variety of materials, the range contains conventional 118-degree point geometries as well as 135-degree self-centering split points for more challenging applications. The range covers most ferrous applications suitable for use in portable drilling, drill presses and other operations, the company says.
The carbide rotary burr range consists of two new material-specific geometries. The double cut (DC) geometry is suitable for machining steels, while the aluminum cut (FM) is for machining aluminum and other nonferrous materials. Available in a variety of shapes, both geometries are said to offer improved operator control and generate less heat, which contribute to tool life and productivity. The company says the designs offer improved performance and up to 50 percent higher metal removal rates, compared to standard carbide burrs.
Cutting holes by interpolating a face milling cutter may be a better process choice for many rough and even finish boring operations. Software improvements and better cutter designs allow expanding use of the versatile face mill for hole making.
Running rotary milling cutters at the proper speeds and feeds is critical to obtaining long tool life and superior results, and a good place to start is with the manufacturer's recommendations. These formulas and tips provide useful guidelines.
Reducing cutting fluid use offers the chance for considerable cost savings. Tool life may even improve.