Brushless cordless circular saw with lithium-ion battery and cutting depth up to 57 mm. The Skil 3551 "20V Max" brushless cordless circular saw is ideal for precise sawing up to a depth of 57 mm. Like all other cordless "20V Max" tools from Skil, this model is powered by the industry-leading, advanced "PWRCORE 20" battery and charger technology. The brushless motor is faster, stronger and lasts 10 times longer than a conventional brush motor. The special LED module illuminates the saw blade and creates a clear shadow line underneath. This function guarantees high-precision cuts by showing exactly where your saw blade is cutting into the workpiece, taking into account the blade width. Good visibility of your saw line is also ensured by the LED light in combination with an integrated dust blower. For durability, this circular saw is equipped with sealed ball bearings. Sealed ball bearings protect the saw from dust and thus extend the service life of the saw. Skil 3551 CA is supplied with an 18-tooth carbide saw blade and a parallel guide. Skil 3551 AB is supplied with a 4.0 Ah "KEEPCOOL" battery, a 1-hour charger, a 2 x 70 cm long aluminium guide rail with clamps, an 18-tooth carbide saw blade and a parallel guide. Industry-leading "PWRCORE 20" battery technology to power all Skil "20V Max" tools. The "PWRCORE 20" system consists of industry-leading advanced battery and charger technology and innovative functions that you won't find anywhere else, such as the patented "Keepcool" battery cooling technology, which increases runtime by up to 25% and doubles battery life. The patented "ACTIVCELL" technology, on the other hand, guarantees maximum performance and optimum battery protection. The "PWRCORE 20" batteries and chargers are 100% compatible and interchangeable with all Skil "PWRCORE 20" power tools and garden tools for ultimate flexibility.