Detailed Product Description

We take our own designed carbide type and angle grinding technology to do our exclusive porcelain drill bits, especial to do those drilling hole work in hard tiles, ceramics and porcelains in dry or wet conditions.

It is different from those normal Glass&Tile drill bits in drilling performance but it can also drill glass and normal hardness tiles, ceramics and porcelains.

We upgrade those normal Glass&tile drill bits into our featured porcelain drill bit.

Diameter: 3, 4, 5, 5.5, 6, 6.5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18

               (inches):1/8", 5/32", 3/16", 15/64", 1/4", 5/16", 3/8", 15/32", 1/2", 9/16", 5/8"

Overall Length: it can be upon customer's special requests.

Shank type: Straight round

Surface treatment: Sandblasted, Bright finished, Cr-coated, Zn-coated, Ni-coated, etc.

Package: PVC bag, plastic tube and paper box, skin package, double blister, single blister.