Bosch SDS Plus 1x18x200x260mm The boring end is designed for accurate and strong drilling in harsh materials such as concrete, stone and brick. Thanks to the tip design of the carbide, it is longevity, shows high resilience and is reliable in professional use. The SDS plus system provides a solid sitting in the drilling machine, allows the energy to be faster and more efficiently by transferring energy directly. It is an ideal choice in construction and repair areas with 18 mm diameter, 200 mm busy length and 260 mm total length dimensions.