1、Fast \u0026 Clean Cuts -- 21V battery provide strong working power speed up from 0 to 6500 RPM in seconds, makes your cut fast and accurate with the tool\u0027s thin-kerf, carbide-tipped blade, with teeth. 2、Long Runtime \u0026 Battery Life -- The Cordless Circular Saw is Compatible with 4.0Ah Replaceable Battery, this Battery can provide super long lasting time and strong energy supply for heavy work demands. With this battery you can get rid of cord messing, work freely anywhere anytime. 3、Cut A Variety Angles -- With a easy-to-use bevel adjustment knob on the side of the unit, you can effortlessly adjust your cutting angle from 0 to 45 degrees which can meet the most commonly cut angles. 4、Not Only Cut Wood -- This cordless circular saw is the go-to wood-cutting tool for DIY projects around the house. And it is also great for cutting PVC, Bamboo, Cement Board and even can be used to cut stone at some time. 5、Safety Ergonomic Design -- Designed with a safety button and blade guard for mostly reducing accidents in operation, promises a safer cutting job. Optimized ergonomic provides ease and less fatigue to one-handed operation. Specification: Rechargeable Battery: 21V 4000mAh Charging Time: about 3H No load Speed: 0-6500(r/min) Cutting Disc Diameter: 100mm-125mm Saw Blade Type:  Circular 110mm * 20mm * 30T Application: Wood Saw + Stone Saw Item Size: Approx. 200 * 210 * 180mm / 7.87 * 8.27 * 7.09in Package Size: Approx. 29 * 19.5 * 18cm / 11.42 * 7.68 * 7.09in 1 * Cordless Circular Saw (without Blade) 2 * Blade 1 * 4000mAh Lithium Battery 1 * Fast Charger 1 * Hex Key 1 * Hex Wrench 1 * User Manual (English)