Dragon Ring Saws designed for cutting concrete or block with a Ring Saw Blade NOTE: BLADE ON SAWS IN PICTURE ARE NOT INCLUDED : BLADES MUST BE PURCHASED SEPERATELY Features/Benefits (All Models): The ONLY hand saw capable of cutting up to 16" deep in concrete or block Best power transfer to blade-where it is needed 1/3 less cutting cost than chain sawing Eliminate over cuts on corners with this ring saw for concrete Up to three times faster than chain sawing Diamond blade life up to five times longer Light weight Specifications (All Models): Minimum Blade Diameter: 16" Maximum Blade Diameter: 20" 16" Blade Cutting Depth: 12" 20" Blade Cutting Depth: 16" Blade Cooling: Water cool only (no dry cutting) HDS60 Hydraulic Specifications: PSI (pounds per square inch): 2000 (2500 Max) Weight: 29.8 lbs. Connections: 1/2" hose (appox. 12" length) 1/2" fittings EDS60 Electric Motor Specifications: Power head: Weka RS30 Power: 115V, 30A, 3200W 230V, 15A, 3200W Overload: electronic Weight: 34 lbs.