The MK Diamond GC-20 is a laser-welded early entry diamond blade for cutting crack control joints in green concrete, part number 171939 in the 6-3/8 inch diameter. Early entry blades go to work within one to two hours of finishing, before the slab has cured enough for conventional sawing, and the GC-20 is the bond MK specifies for hard aggregate.
Specifications
- Diameter: 6-3/8 inches
- Arbor: triangular
- Cutting method: dry
- Aggregate: hard
- Construction: laser welded
- MK Diamond part number: 171939
MK Diamond catalogs the 6-3/8 inch GC-20 in more than one blade width. Confirm the kerf your saw and your joint specification call for before ordering.
Fits
MK Diamond states that the triangular arbor fits Soff-Cut saws without an arbor adapter. Skid plates are sold separately. Confirm your saw model and blade capacity before ordering.
Choosing within the GC series
MK Diamond grades its early entry blades by the hardness of the aggregate in the slab: GC-10 for ultra hard aggregate, GC-20 for hard, GC-30 for medium to hard, GC-35 for medium and GC-55 for medium to soft. Matching the blade to the aggregate is what determines blade life on early entry work, so it is worth knowing the mix before ordering.
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