Set of Hollow Crowns, Hole Saw for Concrete Crown Dry Core Drill Ø 68 mm and SDS Plus Adapter 110 mm and 8 x 110 mm Centering Drill Bit

Ideal for masonry, walls, natural stone, sandstone, artificial stone, concrete, marble. Not suitable for materials with abrasive properties, such as grey sand and rock stone. Drill core is made of durable tungsten carbide tool steel. While the hammer hollow drill adopts carbide, the carbide teeth are available in professional quality for continuous professional use. 68mm hollow drill bits have original asymmetric tungsten carbide teeth with welded cutting segments. Impact resistant hammer, fast drilling, improve drilling efficiency. Lightweight structure, easy and quick to assemble. 68mm core drills have air holes that freely release dust and debris generated during drilling. The SDS drill bit set features a fully molded body and comes with interchangeable centering drills. Hollow drill bit diameter: 68 mm, SDS plus adapter: 110 mm (M22 thread), centering hole: 8 x 110 mm. Suitable for 2-4kg drill hammer with SDS plus bracket.