The MK Diamond MK-303 12-inch (305 mm) professional lapidary blade is made for cutting valuable, hard materials such as agate, quartz, petrified wood, jasper, and jade. At .065 inch thick with a continuous rim and a 1-inch arbor, it is the blade to reach for when cutting speed matters and so does saving as much of the stone as possible.
Built for
- Slabbing and trimming agate, quartz, jasper, and jade
- Cutting petrified wood and other hard, high-value rough
- Lapidary shops, rock hobbyists, and gem cutters running trim and slab saws
- Anyone who wants a smooth cut that wastes less material
Continuous or segmented rim
MK builds the MK-303 with a continuous rim on blades from 4 to 14 inch and a segmented rim on 16 inch and larger. This 12-inch blade has a continuous rim with a 5 mm rim height. MK says the MK-303 cuts smoother and faster and lasts longer than notched rim or plated blades.
Choosing thickness and arbor
This 12-inch blade is .065 inch thick. MK scales thickness with diameter across the MK-303 line, from .014 inch on small blades up to .200 inch on the 36 inch size. The stock arbor is 1 inch. MK notes that stock arbors can be bushed to smaller sizes, and special arbors are available on request.
Care and use
Use the blade with a water soluble coolant, as MK specifies for lapidary work. Dry the blade and coat it with an anti-rust lubricant before storing it. Match the blade to your saw speed: some rock hobbyists report good results on trim saws, while very high speed tile saws can dull a standard lapidary blade faster and call for more frequent dressing.
Specifications
- Brand: MK Diamond
- Model: MK-303 professional lapidary blade
- Diameter: 12 inch (305 mm)
- Thickness: .065 inch
- Arbor: 1 inch
- Rim: continuous, 5 mm rim height
- MK Diamond part number: 156726
Frequently asked questions
What is the MK-303 made to cut?
MK designs the MK-303 for valuable, hard materials such as agate, quartz, petrified wood, jasper, and jade.
Which coolant should I use?
MK specifies water soluble coolant for the MK-303. Dry the blade and coat it with anti-rust lubricant before storage.
Is the rim continuous or segmented?
This 12-inch blade has a continuous rim. MK uses continuous rims from 4 to 14 inch and segmented rims on 16 inch and larger.
Can the arbor be reduced?
Yes. Stock arbors can be bushed to smaller sizes, and special arbors are available on request from MK.
Discount Cleaning Products is an authorized dealer for MK Diamond, with US-based customer service to help you confirm size, arbor, and part number before you order.
