The Bosch Blue Tool Set combines the powerful cordless punch drilling drill GSB 18 V-55 Professional and the practical GWS 18V-7 professional cordless angle grinder. Applications. The GWS 18V-7 offers impressive cutting performance with a 700-watt equivalent engine, light design and quick adjustability., Both tools are compatible with Bosch Professional 18 V batteries and charging devices. With a soft start and recovery protection, you offer powerful performance and security. The ideal set for efficient and reliable work.