Made of hard metal and Diam with corrosion resistance and durable.
The diamond hole saw was processed by a smooth and exact finish that lower resisting force to the minimum, increase the sharpness to drill precise holes in seconds.
Diamond drill bits start the hole diagonally, make a round braid and then hold drill straight. Water is required for lubrication when drilling.
Widely use of drilling glass, tile bottle, ceramic tile, brick, stone, granite and so on. 10/15/16 pcs set meet most of your different needs.
Timely customer service can help solve all the customer complaints.
Specification:
15 pcs/set: 6mm/0.24inch, 8mm/0.31inch,10mm/0.39inch,12mm/0.47inch,14mm/0.55inch,16mm/0.63inch, 18mm/0.71inch, 20mm/0.79inch,
22mm/0.87inch,25mm/0.98inch, 26mm/1.02inch, 28mm/1.1inch, 30mm/1.18inch, 40mm/1.57inch ,50mm/0.20inch
What's in the box
1 x Diamond Hole Saw Drill Bit Tool 6-50mm Glass Marble (15Pcs)