Diamond Hole Saw Core Drill Bit for Coring Granite Mansonry Concrete
Applicable materials: |
marble, granite, concrete, tri-colored stone, cobblestone and other stone openings |
Scope of application: |
engineering drilling machine, air conditioning, range hood drilling and so on |
Length: 180-450 mm Diameter:18-350mm |
Note: when opening the hole, first tilt 45 degrees to open a crescent groove, and then slowly straighten the drill bit, vertical opening. |