Dormer Pramet Offers Cutting Tools for Maintenance, Repair Applications
Dormer Pramet offers a range of cutting tools and accessories aimed at maintenance and repair (MRO), including drills, taps, dies, reamers, end mills and rotary burrs.
Dormer Pramet offers a range drills to cover most ferrous, maintenance and repair (MRO) applications on portable drilling equipment and drill presses. General purpose machine and portable drilling tools include the HSS R10 series for right hand drilling and HSS L10 series for left hand drilling. Also included are the carbide DC series of center drills. There is a specific selection for sheet metal drilling and spot weld drilling.
The MRO drills are available in jobber length (301JD), heavy-duty jobber length (331HD, 332HD and 333HD), mechanics length with “tri-flat” shanks (321MD), stub length (331SM, 332SM) and reduced-shank (341SD, 342SD). Various surface treatments cover the range of MRO operating conditions. The program contains conventional 118-degree point geometries as well as 135-degree self-centering split points for more challenging applications. Sets within each style are available in a rust-resistant, water- and shatter-proof case.
Reducing cutting fluid use offers the chance for considerable cost savings. Tool life may even improve.
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.
One of the most common methods of tapping in use today on CNC machines is 'rigid tapping' or 'synchronous feed tapping.' A rigid tapping cycle synchronizes the machine spindle rotation and feed to match a specific thread pitch. Since the feed into the hole is synchronized, in theory a solid holder without any tension-compression can be used.