Concrete Super Drill Set – 5pcs

These high quality concrete drill bits have a unique shapedtip with acentering point and a H-spiral flute for maximum drilling speed and longer lifetime in hard materials such as concrete, aerated concrete blocks, masonry, natural stone, artificial stone, ceramic tile, slate and granite. From 12 mm the drill bits are supplied with a multi-flat shank to prevent the drill bit slipping in the chuck.