... type: SDS Plus, SDS Max, Spline shank. SDS Hammer drill ,SDS shank drillShank type: SDS Plus, SDS Max, Spline shank. ... granite, concrete, stone, masonry, tiles and marble. 5. The electric hammer drill bits are machined from chrome steel or ally steel fitted ... with tungsten carbide insert brazed at a very high temperature to withstand severe heating when drilling hard materials. L ...