Compact and lightweight, the Hilti TE 6-A is a cordless drill ideal for drilling concrete, stone, and masonry with up to 20 mm drill bits. The keyless chuck in this cordless drill lets you change the drill bit quickly and easily. You can control the speed of this Hilti drill as per the work surface requirements, thanks to its smooth speed control feature. Powered by a li-ion battery, this Hilti drill offers extended operation on a single charge. Additionally, the Hilti TE 6-A is fully compatible with the Hilti Li-ion (B36/3.9 and B36/2.6 Li-ion) and NiCd (B36) batteries.