Lasts up to 3 times longer than standard drills - drilling through reinforced concrete is a difficult task, which requires the drill bit much. Normal drills with two cutting edges remain stuck in the armouring and break off. The full carbide head on the Expert SDS plus-7X is an advanced 4-cutter that consists of a single piece of the hardest metal: It does not jam and shows no weakness in impact drilling. Thanks to Bosch Carbide Technology and the full carbide head, the Expert SDS plus-7X is much longer than normal hammer drills. It effectively penetrates the armor, so you don't have to stop, re-aim or change the drill when you hit steel. For construction professionals who regularly drill in concrete and reinforced concrete, for example for drilling and installation. The Bosch Expert SDS plus-7X hammer drill offers unparalleling performance, reliability and durability. It IS the expert accessory for SDS plus hammer drills. Suitable for all SDS plus hammer drills. This text is machine translated.