Makita BHP454 18-Volt LXT 1/2-Inch Lithium-Ion Cordless Hammer Drill Kit. Makita BHP454 versatile BHP454 can be run as a driver-drill or a hammer driver-drill, allowing the user to carry just one tool on the job instead of two, replacing the standard driver-drill. Click Image to see more Makita BHP454 Cordless Hammer Drill Kit Review. And See more Makita BHP454 Cordless Hammer Drill Kit Technical Details.