Whether on the roof or on solid ground, whether repeatable angle cuts and guided cuts in combination with the FSK cross-cut rails and FS guide rails or precise mitre cuts - the HKC 55 cordless portable circular saw shows what modern portable circular saws can do today. And it proves it with every cut. With its versatility, flexibility of use and maximum precision. Mobility and independence thanks to the powerful 18 V lithium-ion battery and connectable cross-cut rails. Brushless EC-TEC motor combined with lithium-ion batteries for maximum cutting performance. In conjunction with the cross-cut rail: fast, precise angular and mobile cross-cutting. Safe and convenient handling thanks to cutting depth adjustment with plunge function, pendulum hood remote control and guide wedge. Angle adjustment with central clamping from 0 to 50°. Safe and straight sawing on the guide rail. Ideal in combination with the Airstream battery packs 5.0 Ah or 8.0 Ah. 5.0 Ah as a powerful all-rounder with excellent output rates and long runtimes per battery charge. Or with the 8.0 Ah powerhouse for maximum runtime and maximum performance. Convenient vacuuming: The battery pack communicates via Bluetooth with the Bluetooth module of the Cleantec mobile vacuum cleaner (can be retrofitted as an accessory on the CT 26/36/48, directly integrated on the CTC mini I and CTC midi I cordless vacuum cleaners and on the CT mini I and midi I) and starts the mobile vacuum cleaner automatically when the HKC 55 is switched on.