Archer USA 4 in. Turbo Rim Diamond Blade with Protect Teeth for Stone CuttingIdeal for both professional contractors and DIY users Grade A diamond crystals for high sawing performance Narrow turbo rim to reduce chipping Protect teeth add side grinding for more aggressive cutting Special bond for cutting stone, masonry, pavers, bricks, blocks Suitable for both dry and wet use 4 in. x 2. 0 mm x 7 8 in. arbor Max. RPM 15,000 American designed tools made in China Features Blade Diameter (in.) 4 Blade Type Diamond Number in Package