5 Packs Dry Diamond Drill Bits Set 1/4" 6mm Vacuum Brazed Diamond Hole Saws for Granite Tile Ceramic Marble Stone Glass and More Hard Materials (not

5 Packs Dry Diamond Drill Bits Set 1/4" 6mm Vacuum Brazed Diamond Hole Saws for Granite Tile Ceramic Marble Stone Glass and More Hard Materials (not

1/4" (6mm) Diamond Dry Core Drill Bits - 5-Piece Set：Efficiently drills ultra-hard surfaces，Specifically engineered for porcelain, tile, ceramic, granite, marble, natural stone, glass, and brick. Decent Diamond Core Bits - ideal for drilling holes in bathroom tiles to install shower doors, install water filter in kitchen, as well as hobby projects in plant pots, vases or glass bottles. Dry Drilling Hollow bits – These 6mm diamond coated hollow bits are filled with Wax inside, which will cool the bit while dry drilling; it also can enlarge holes with the side of the drill bit. Precise in Details – Each Core drill bits engraved with Depth mark useful for precise projects; 1/4" Round Shank compatible with most hand-held drills, stand drill press.

The 1/4" Diamond Dry Core Bits are engineered with diamond segments to provide faster drilling in hard materials applications, such as Granite Tile Ceramic Marble Stone Concrete and Glass with minimum cracking or chipping. 

Specifications:

5 pcs of wax filled Hollow Drill Bits

Dry Drilling

Diameter: 1/4” (6 mm)

Segment height: 10mm

Connection Type: Round shank

Drilling pattern: hand-held, stand

Dry Diamond Core Drill Bits User Steps:

1. Start the drill at high speed 

2. Let the tip of the core drill bit to touch the surface on 45 degrees angle to get a start cut with minimum bit walking 

3. After a small cut is made on the surface. move the drill bit up-right slowly and wobble it to extract the debris 

4. As it will produce heat drilling hard materials, giving the bit time to cool between holes will help to keep it sharp for a longer time