The powerful 6.5 Amp motor on the Bosch 11320VS SDS-Plus Chipping Hammer gives it the highest removal rate in its class! A specially-designed impact mechanism provides a smooth change between no-load and hammering modes and gives superior tool control for easier positioning and precision chiseling. The SDS-plus Bit System allows tool-free bit changes with auto bit locking, dust protection and maximum impact energy transfer. It especially eliminates problems associated with proprietary types of steel. The next-generation SDS-plus Bit Holder will keep this tool in use longer. Variable-speed trigger switch with recessed lock-on button is ideal for exact adjustment of impact force, comfort and less fatigue. The user will get smooth change from no-load into hammering mode with the Soft Start feature. A cushioned soft-grip handle absorbs shock and vibration for operator comfort and less fatigue. With Vario-Lock positioning a bit can be angled in any of 12 positions. The light weight of this tool gives it the highest power-to-weight ratio in its class. To keep this tool in the field longer, innovative Service Modules have been designed so a qualified service technician can quickly replace the brushes and cord. Oil lubrication is recommended for good cold-start and excellent lubrication in all working positions.