GWR features the finest "Micro Grain" C3 Carbide cutting bits for all brands of brake lathes, while the industry standard is only C2 Carbide.  We additionally offer the newest of cutting technologies like "Round Bits" and our revolutionary "Super Purple Bits".  These special bit designs speed up the cutting process by up to 70%, while reducing rotor roughness (RA) by up to 25% and net rotor cost by up to 50%.
 
(Link to Complete Listing of GWR Brake Lathe Bits at Page Bottom)

By purchasing your lathe bits and service items from GWR, you can save 25% to over 60% on factory replacement and OE quality aftermarket parts for your shop.   Please visit the bit or supplies pages via the links at the bottom of this page or e-mail us at   sales@GWRauto.com   with your needs or order.

If you want more specific information or you would like to speak directly to a knowledgeable sales representative before ordering, please call 1 (800) 266-4497 weekdays between 1PM and 8PM  (EST).

We honestly value our customers and will spend all the time necessary to make sure you get the right items and best prices for your lathe supplies... that's our promise to you.

Our other preferred "performance" bit, when you like an original triangle style configuration.....
 

GWR's "Super Purple" Lathe Bits^tm
There is no equal in automotive triangle bits, this quality is normally only sold to the machine tool industry!

The secret of our Purple PVD bit is four things...

First, the bit is positive rake!  This allows for a finer finish cut when compared to negative rake designs.  Additionally, they will shave through hard spots, not bump over them.  This produces truer rotors, with less possibility of run out.

Second, the bit is larger than the most common brands of lathe bits like Ammco, Hunter, Snap-On, etc., it has a 3/8" I.C. vs 1/4" I.C (Inscribed Circle diameter).  The larger the bits I.C., the better they cut on all fronts and the longer they last because there is less wear on an individual point of contact.

Third, the normally sharp points (like most triangle bits) are rounded to an extreme degree.  This creates a unique slicing or pealing action of the rotor metal, not the ripping or tearing action common to a standard sharp point design.  An additional benefit is you can index the bit, move it to the opposite tool holder after three turns, to increase the number of cutting positions to six.

Fourth, but probably most important, we use the finest grade of carbide and then process it through several heat treatment processes, including a final P.V.D. coating to enhance edge sharpness.  This process is far superior to all other processes, including titanium coatings.  Unconditionally guaranteed, these are the finest bits money can buy and you pay no more since they double the number of cuts per bit.

Our PVD coatings are smoother, denser and maintain a sharper edge!  Notice the layering effect that is clearly visible on the surfaces of these carbide lathe bits.  Also notice the roughness of the actual carbide, this would be your cutting surface if you're not using PVD coated bits.

GWR Part  # 65-PVD1