Alpha Tools Contour Blades for Granite




Alpha Tools Contour Blades for Granite features blade design specifically developed for cutting granite sinkholes. The Contour Blade also works very well on all curved cutting applications for engineered stone and harder types of marble. The special design incorporates direct sintered diamond segments on both sides of the steel core, as well as, on the peripheral cutting edge. This allows the blade to cut the curved area cleanly, accurately and safely while allowing a wider kerf, thus giving the blade easier cutting ability. The diamond segment on the inside of the steel core prevents undercutting, which is a common problem with curve cutting applications. The Alpha Tools Contour Blades for Granite are available in 4″, 4.5″, 5″ and 6″.


  • Specifically developed for cutting granite sinkholes
  • Use on quartzite and harder types of natural stone
  • Cuts curved areas cleanly, accurately, and safely while allowing a wider kerf
  • Fits on wet/dry stone cutters
  • Direct sintered diamond segments on steel core prevents undercutting
  • Eliminates the need to perform difficult and time-consuming plunge cuts
  • Fits on CNC router with cutting head
  • Can be used either wet or dry

Sizes and Specifications:

  • 4″ – 4.0mm thick – 14,500 max RPM – 7/8″ arbor
  • 4.5″ – 4.0mm thick – 13,200 max RPM – 7/8″ arbor
  • 5″ – 4.0mm thick – 12,200 max RPM – 7/8″ arbor
  • 6″ – 4.0mm thick – 10,100 max RPM – 7/8″ arbor


Contour for Granite/Engineered Stone

Additional information


4", 4.5", 5", 6"