1/4'' Shank Dry Drilling Diamond Hole Saws For Cutting Granite

Product Description

1. Premium Diamond and 45# steel raw material: Vacuum brazing of fully high-quality diamond at high temperature quenching makes it more sharp on drilling.
2. Built-in cooling wax: Cooling wax is inlaid inside of the bit head which can cool heat when dry cut the holes.
3. 1/4'' hex shank: Hex shank allows it to be held tightly by electric drills or bench drills

1. A grade diamond crystals for high performance ,and using special cutting structure, making the core bit works stably.It could be maintained higher drilling speed during the core bits rotaries drilling
2. Using high performance compound piece combination , enhances the core drill bit's life.
3. The highly polised cutter could reduce the frictional resistance and quicked discharge fragment so that improve the drilling efficiency.
4. Diamond core drill bits suitable for dry and wet drilling
5. Using widely ,mainly used for drilling and engraving Marble,Granite,Sandstone,Limestone,etc

Product Parameter

Application&Tools


Why Choose Us
1. 26-year Industrial experience and covers area of 11700㎡ with 6 workshops
2. Procucts can be made as you required and OEM/ODM
3. Free samples can be sent for evaluation
4. Professional before&after-sales teams 24h-online to solve your any technical problems.

ZhongZuan Tools

ZhongZuan Tools is a professional manufacturer of drill bit, hole saw and diamond tools with 26-year industrial experience.We provide you with a range of power tools accessories for metal,glass,ceramics,marble,granite etc materials cutting. Core products cover diamond hole saw,diamond blade saw,diamond polishing pad,HSS drill bit,bi-metal hole saw,carbide drill bit and hole saw as well as other hand tools like glass cutter,glass suction cup. We have gained rich experience in our products’ design,manufacturing and use so that we can produce suitable products for any complicated processing conditions.ZhongZuan Tools always brings our customers best solutions to solve their any problems in application. We’re committed to improving our products quality and our management level.Always fight for becoming a harmoniously-developing modern enterprise with premium products from advanced technology and customers’ satisfaction.