Feature(may vary by option.)
●1/2”（12mm） Dry Diamond Drill Bits – Drill perfect smooth 12 mm diameter holes in hard materials countertops in Granite, Porcelain, Tile, Ceramic, Marble, Stone, Glass, Brick
●Sharp and Clean– Dry Drilling Vacuum Brazed Diamond cutting segments are sharp and durable, cutting perfect clean smooth holes with minimum chips
●Convenient Dry Drilling - There is wax in the Diamond Core Bit, which will melt to cool the bit while dry drilling
●1/4” Quick Change Hex Shank – Dry Diamond Core Drill Bits compatible with most hand-held drill, drill press and any other tools with chucks that accepts 1/4” Hex Shank bits
●User Tips – Start drilling with the bit on a 45-degree angle, let the tip touch the surface to create a groove, then bring the drill upright slowly; DO NOT press the drill, let the bit do the cutting; Use extra cooling wax to protect the tip if you need multiple holes
[3 & 8 u201D（10mm）]
[1 & 2 u201D（12mm）]
[1 & 4 u201D（6mm）]
Description
2 Packs of 1/2” (12mm) Diamond Drill Bits
Features:
1. They can drill perfect smooth 12mm diameter holes in hard materials for installing cables and tubes in countertops in Granite, Porcelain, Tile, Ceramic, Marble, Stone, Glass, Brick
2. Decent Diamond hole saws are ideal for drilling holes through hard tile to install shower doors, drilling holes in ceramic plant pots vases glass bottles for hobby projects
3. Diamond coated drill bit drilling through things like porcelain tile smoothly and easily without cracking or chipping the delicate materials; It is even possible to enlarge a hole with the sides of the drill bit when you need.
Specifications:
Shank: 1/4” Hex Shank
Bit type: Vacuum Brazed Diamond tips
Diameter: 1/2” (12 mm)
Drill type: Both Dry and wet
Diamond coating: 10mm
User Tips:
Steps to drill clean and precise holes:
1. For minimum drill bit walking - Start at a high speed, and let the tip of the drill bit to touch the tile surface gently on a 45 degrees angle, do not force it.
2. After you open a groove on the surface, slowly move the drill bit up-right and wobble it to extract the debris
3. Cutting hard materials produces heat fast, so cool the bit often to keep it sharp for a longer time