The MK Diamond MK-304RCK is a 9 inch Premium Grade dry-cutting multipurpose diamond blade, carried here as part number 165109. MK describes it as a premium grade multipurpose blade for wood, plastic, steel, concrete, masonry and ductile pipe. That range is unusual for a diamond blade and is why the multipurpose line is specified for rescue and demolition work, where the operator cannot stop to change blades for whatever the next cut turns out to be.
Specifications
- Manufacturer: MK Diamond Products
- Model: MK-304RCK
- MK part number: 165109
- Blade diameter: 9 in (229 mm)
- Width: .095 in
- Arbor: DM 7/8 in to 5/8 in
- Segment height: 7 mm
- Rim type: segmented
- Cutting: dry
- Grade tier: Premium
- Materials: wood, plastic, steel, concrete, masonry and ductile pipe
Vacuum brazed construction
The multipurpose line uses vacuum brazed technology, which is described as the strongest heat resistant bond available when cutting without water cooling. That bond is what allows one blade to take both steel and masonry: the diamond is held metallurgically to the steel rather than sintered into a wearing matrix, so the blade does not depend on bond erosion to keep exposing fresh diamond.
Independent testing
MK Diamond reports that as part of the SAVER Program, Texas A and M Engineering (TEEX and TTI) conducted a comparative assessment of multipurpose cutoff saw blades, and that the MK Diamond Tiger Tooth blade rated highest of all blades tested.
Operating speed
MK Diamond does not publish a maximum RPM for the 9 inch MK-304RCK. Published RPM figures exist for other sizes in this line but not for the 9 inch, and interpolating between them would not be reliable, so no figure is stated. Do not run the blade above the maximum speed marked on your saw.
Warranty
MK Diamond warrants its blades against manufacturing defects in normal service for one year from the date of purchase by the original consumer purchaser. On brazed blades, MK replaces the blade free of charge if the brazed bond fails within the first .050 in of segment wear. Normal wear, misuse, abuse and unauthorized alteration are excluded, and MK does not pay freight.
Fits
Confirm that your saw takes a 9 inch blade and that its arbor matches before ordering. Note that some third-party listings state a 5/8 in arbor for this part; MK Diamond's own specification table states DM 7/8 in to 5/8 in, and that is the figure given above.
Discount Cleaning Products is an authorized MK Diamond dealer based in the United States, with live support if you need help matching a blade to a material or saw.
