
This set includes 30mm, 40mm and 50mm base drill bits, SDS+ chuck, pilot drill bit and a 350mm SDS+ extension shaft. Made of hardened metal, high quality tungsten carbide tip, durable. Suitable for brick walls, red bricks, masonry, foam bricks, hollow core drill bits, etc. It can be used to install air conditioners, cooker hoods or washing machines. The teeth of the drill are sharp, the vibration during the opening process is small and the operation is stable. Rounds alloy blade combinations, each blade should bear part of the workload without the risk of cracking. Professionally designed drain holes ensure smooth chip evacuation when opening. Comes complete with core drill bit, pilot drill bit and SDS mandrel. Easy and fast drilling. Low pressure is important to extend the life of the cutting tips and achieve a straight cut. They cannot be used for concrete, load-bearing walls or walls with steel bars.Advantages:1. Made of high quality metal with carbide tip, very durable.2. Mostly