DIDA?uses "PCVD" to maximize performance and durability. This latest scientific "State of the Art" technology creates a hard wear resistant, low friction film. Our steel alloy piston ring is coated with "PCVD" while our cylinder is coated with a hard durable ceramic coating. Together they reduce friction and form a clean burning system that generates more power, while ensuring longer life. In addition to these features our "HEMI" head design makes this saw the most powerful in its class. Specifications: Model No. DH65 Power Type Two-Stroke Displacement 65CC Power 3.5KW(4.8HP) Speed 9500rpm Blade No-Load Speed 2600rpm Outer Diameter 14"/350mm Arbor Size 1"(25.4mm)/7/8"(20mm) Depth of cutting 5"(123mm) Packing Size 28-1/2"(725mm)X17"(436)mmX10"(252mm) Net/Gross Weight 21.56LBS(9.8KG)/26.18LBS(11.9KG) 20'' Container 360units 40'' Container 720units Well Balanced ● High Performance ● Durable ● Efficient ● Lightweight Well Balanced Efficient ■Ergonomically and user friendly designed ■High Efficiency 3 Stage Air Filtration System High Performance ■Precision engineered Carburator and Fuel Filter ■Advanced engineering design dampens vibration ■Technologically advanced Digital Ignition ■Poly-V-Belt generates maximum torque transfer ■Reliable and easy start-up decompression system ■Accepts 12" and 14" blades with 20mm-1" arbor ■Anti slip flange transfers power with maximum torque ■Designed for tough applications in: Concrete, Masonry, Asphalt, Stone, Steel and Ductile Iron ■Environmentally friendly: gas tank vapors are burned instead of being released into the air ■Low emission and excellent fuel economy ■Advanced exhuast design reduces noise and emissions ■Enlarged, protected trigger area allows operator to wear gloves ■Front rollers lessen operator fatique and aid in cutting Durable ■Easily adjustable blade guard for any angle work ■Precision engineered Cold-Forged Steel Shaft ■Upright and enlarged fuel port for easy fueling ■Convenient and Sturdy Starter System Lightweight ■Sealed Clutch and Shaft Bearings ■Innovative design reduces weight: Magnesium all