10PCs Daily Diamond Core Drills Set, 1/4",5/16",3/8",5/8",4/5",1",1-3/8",1-9/16",2.5" Drill Bit & 1PC SDS Adapter for Ceramic Tile Marble Porcelain 5/8-11 Thread

10PCs Daily Diamond Core Drills Set, 1/4",5/16",3/8",5/8",4/5",1",1-3/8",1-9/16",2-1/2" Drill Bit & 1PC SDS Adapter for Ceramic, Tile, Marble, Porcelain 5/8-11 Thread, Hole Saw Drill Bits, Dry Tile Drill, Tile Bit

• 【High Durable & Efficiency】 High-quality diamond grains and vacuum brazed technology provides high efficient working performance/Faster Drilling Speed/Longer Service Life. Treated by special high-temperature resistant process, can be used directly dry drilling,also with water to extend service life.Diamond Drill Bits are made with High-strength steel and High quality. Diamond Grit: #35/40
• 【High Precision & Clean Cuts】 U-Grooves design fast chip removal, high-temperature resistant process allowing for greater accuracy in drilling.
• 【More Versatility & Convenience】 With a diamond drill bit set, you have a Range of sizes and types to tackle different projects and materials,save money.
• 【Recommended Machine】 with 5/8-11 thread, Recommended Speed 6000RPM; Faster the RPM, longer the bit's working life; Hammer drill,you can use SDS Adapter but have to shut down hommer moder when using these bits;
• 【Package Content】11pcs/package 9PCs Drill Bit:Diameter 1/4"(6mm),5/16"(8mm),3/8"(10mm),5/8"(12mm),4/5"(20mm),1"(25mm),1-3/8"(35mm),1-9/16"(40mm),2-1/2"(65mm) with 5/8-11 thread. 1 PC SDS Adapters:1pc 5/8-11 Thread to SDS Plus Shank In a Useful Box to Keep them Together and Easy to Find. Suitable for dry/wet drilling Porcelain Ceramic Tile Marble Granite, etc. Diamond core drill bits for drilling holes. adapter could change the connection of diamond bits from 5/8''-11 thread to SDS.