YELLOW SERIES for SOFT CONCRETE
(under 2500 psi, Mohs Scale 2-3)
GREY SERIES for MEDIUM CONCRETE
(2500-4000 psi, Mohs Scale 3-5)
RED SERIES for HARD CONCRETE
(4000-5500 psi, Mohs Scale 5-7)
GOLD SERIES for EXTRA HARD CONCRETE
(above 5500 psi, Mohs Scale 7-8)
WHITE SERIES for SUPER HARD CONCRETE
(above 7000 psi, Mohs Scale 8-9)
See catalog for a complete list of QC Metal Tools with part numbers.Use QC tooling with Security Plates for safe operation.
GRINDING TIPS:
- SOFT CONCRETE is very abrasive and wears out the bond and diamonds faster. You should use a hard bond, such as the QC Yellow series, to avoid premature tool wear.
- HARD CONCRETE requires a soft bond tool, such as the Red, Gold and White bond, to avoid diamond glazing. Glazed diamonds slide on the concrete surface without cutting because there is not enough abrasion to keep them open. You can try adding water or an abrasive such as sand to open the diamonds but if glazing continues you should switch to a softer bond.
