Protech Diamond Tools Inc. A Canadian professional developer and manufacturer of high quality diamond products. Our product line includes: Cured Concrete Blades, Curb and Gutter Blades, Green Concrete Blades, Asphalt Blades, Wall Saw Blades, Hand Held Saw Blades, Detector Loop Blades. Also full line of Concrete Core bits. Specialty blades developed: PVC Cutting Blades, Metal Diamond Blades. Full line of stone saw blades, silent core granite blades, marble blades, granite coring bits, etc..Full line of masonry construction diamond tools. more... See more text