For Concrete Cement Hole Core Drill Bit Cutter Set 9Pcs 30-100mm SDS Plus

Stable Clamping: The round shank is available in "five pits" and "two pits and two slots", which is well suited for both electric hammers and impact drills and can be securely clamped on them. Good Protection: The cotton pad and fleece in the aluminum storage box can protect the products well and make them less likely to be worn and scratched. It helps to extend the service life of the products. Excellent Anti-rust: The surface of the product is sandblasted and coated with anti-rust oil, so it has a good anti-rust ability. You don't have to worry about the product rusting thus affecting the overall beauty and performance of the product. External Threaded Interface: The product is designed with an external threaded interface. It can fit closely with your drill chuck, thus greatly improving the drilling speed. Spiral Groove: The product adopts a spiral groove design to exclude debris, it can make debris cleaning more comprehensive and effectively prevent debris clogging.