4Pcs Multi-purpose Alloy Cross Hex Shank Drill Ceramic Glass Hole Opener, Size:8MM

Description:
1. Material: alloy
2. Specifications: 8 mm ;
3. Features: the cross head opening is round and durable
4. Compatible equipment: bench drill / pistol drill / rechargeable hand drill
5. Uses: for openings in ceramic/glass/ceramic/granite