Blackdecker percussion hammer drills blackdecker kr604cresk the powerful 600w kr604cresk percussion hammer drill from blackdecker is ideal for home drilling into a variety of materials including wood metal and using the hammer action masonry the drill has a spindle lock allowing easy bit change and maximum accessory grip and its variable speed combined with the secondary handle offers more control the kr604cresk also has a high quality 13mm keyless chuck blackdecker kr604cresk