Feature:1. 10Pcs in 1 Set: The kit includes 10pcs cross spearhead drill bits, with standard size, often used with electric hand drills.2. Cemented Carbide: Made of excellent cemented carbide material, rustproof treatment, long term use is not easy to wear and deform.3. Cross Spearhead: Reinforced cross spearhead design can prevent drill bit from cracking and prolong the service life of drill bit.4. Hex Handle: The standard 1 or 4in hex handle can be easily and safely installed on the power tool, tightly locked and easy to replace.5. Applicable Materials: Suitable for glass, ceramics, ceramic tiles, mirrors, plant pots, wood, porcelain, brick wall, marbles, thin iron plates, etc.Specification:Item Type: Cross Spearhead Drill BitMaterial: CarbidePurpose: Used for perforating ceramic tiles, concrete, wood and glassDrill Bit Style: Cross spearheadHandle Type: Hex handleHandle Size: 1 or 4inAdaptation Equipment: Electric hand drill, etc..Package List:10 x Drill Bits1 x Plastic BoxNote:Please try to keep the drill bit vertical when using it, and keep the drill bit cool under the condition of cold water flowing, and do not use it for hard tiles.