Product Description The diamond core drill bits are also called diamond hole saw. This tool is designed for drilling brick, stones, concrete, and other construction materials. Some projects are to get the core material for analyzing or others using, but most cases are to get the holes, like the hole for air conditioner, hole for pipe, etc. Sunny uses imported diamond particles (Element Six) from Ireland on most of our core drill bits, to ensure its high performance. We also developed various shapes of the diamond segment to enhance its drilling performance, like "Roof Shape", "Arix Shape", "Crown Shape", "Turbo Shape" and others. We have different excellent formulas of these shapes of segments according to different applications. For core bit retipping, we also prepared the magnet holder to help to locate the core drill bit segments. Features: Imported diamond particles from Ireland - "Element Six" Various diamond segment shape to choose from Excellent diamond segment formulas according to different applications High performance & long lifespan Diamond Core Drill Bit Segments and Magnet Holder for Retipping Optional Size of diamond core bit (other specifications are available upon requests) OUTER DIA. DRILL DEPTH NO.OF OUTER DIA. DRILL DEPTH NO.OF mm mm Segs. mm mm Segs. φ25 450 3 φ125 450 11 φ28 450 3 φ130 450 11 φ30 450 3 φ135 450 11 φ32 450 3 φ140 450 12 φ35 450 3 φ145 450 12 φ38 450 4 φ150 450 12 φ40 450 4 φ160 450 12 φ45 450 4 φ170 450 12 φ51 450 5 φ180 450 13 φ55 450 5 φ190 450 13 φ60 450 5 φ200 450 15 φ65 450 6 φ210 450 16 φ70 450 6 φ248 450 16 φ75 450 7 φ298 450 17 φ80 450 7 φ348 450 20 φ90 450 8 φ398 450 28 φ100 450 9 φ449 450 32 φ108 450 9 φ498 450 35 φ112 450 9 φ548 450 38 φ118 450 10 φ598 450 42 φ120 450 10       QUICK LINK ▼ Specifications Name 60mm Diamond Core Drill Bit For Drilling Concrete Application For drilling concrete, reinforced concrete Welding Type High-frequency welding Outer Diameter 60mm Working Length 450mm Segment Type Roof Type Segment Segment Size 24*3.5*10mm Segment Nos. 5 pieces  Connection 1-1/4-7 UNC Packing 1 piece per box Payment Terms T/T, Western Union, Paypal, Wechat, Credit Card, Cash, L/C Place of Origin Quanzhou, Fujian, China Shipping Port Xiamen Port (other ports are available) Back to Quick Link Packing of Long Diamond Core Drill Bit Back to Quick Link Customer Testimonials What our customers are saying of our diamond tools... Hi Miley- yes we didi test them this weekend. The concrete we were grinding this weekend was super hard and the diamond segments held up pretty good. We had to add more weights to our machine mostly do to the large surface on the segments that's why we went to the new ones you guys just shipped out.I will leave a good review on your website.Thank you.Customer from United States Dear Alvin, We have stoc from our old supplier but we tried all your tools. They look really great and our first impression is that your tools are perfect. We will see what will happened on long run but as I see your tools they are great.We will look also to some other products from your range and we will prepare another little order this days. technically all the tools look great. ThanksCustomer from Turkey Hi Jane i recieved the blades and we tested them out today and they are the best we have ever used in our 25 years in the concrete sawing businesCustomer from Australia Привет мой друг Вот такая красота получилась, при работе вашим расходникомметалл/резинки!Customer from Russia Hello! We tested the #16-20 grit diamond tools, and they work excellent!! I would like to order some more tools, 6×12 pieces=72 pieces more (SYF-B02 shape) Could you please send me a proforma invoice, so I can pay it in advance, Thank You! Best wishies,Customer from New Zealand Why Choose Sunny Superhard Tools? Reliable quality, competitive price, quick response, fast dlivery, OEM/ODM service and more. Reliable Quality As a professional and experienced diamond manufacturer since 1993, Sunny Superhard Tools insisted on providing the best quality of diamond tools to our customers. Fast Delivery Fast delivery is very important for recovering the investment. Sunny Superhard Tools provide fast delivery service to benefit our customers. Small orders can be delivered within 7-15 days. Competitive Price Sunny Superhard Tools is continuously finding different ways to reduce the price without sacrificing the quality, and make our diamond tools competitive when compared with others. OEM/ODM is Available In the past few decades, Sunny Superhard Tools has made many orders of the OEM/ODM successfully. Some of the OEM/ODM services are free of charge! Quick Response Our teams is professional and the members have good study of the diamond tools. We offer quick response. Each messege or email will be replied within 24 hours. Flexible Payment Terms There are lots of different payment ways supported by Sunny Superhard Tools:T/T, Westunion, Paypal, Wechat, and Cash. For big orders, L/C can also be considered Back to Quick Link Frequently Asked Questions Which type of bush hammer scratching roller should I choose, Carbide or PCD? For the bush hammer scratching roller, we have designed two different types: one is the carbide type, and the other is the PCD type. Here is the guide to choose the right scratching roller: 1. For scratching soft stones(such as marble), please choose carbide type. Why? Because the hardness of carbide teeth is not such high for scratching hard stones, but it is enough for scratching soft stones.  Besides, the carbide teeth are much more competitive compared with PCDs. 2. For scratching hard stones(such as granite), please choose the PCD type. Why? Because the PCD has a very strong hardness, wear-resistance, and it works well on the hard stones. It can also be used for soft stones. But in that case, it's not economical. Are you a trading company or a manufacturer of diamond tools? Yes, Quanzhou Sunny Superhard Tools Co., Ltd was established in 1993, and we are a professional and experienced diamond tools manufacturer in China. Compared with traders, we have the following advantages: 1. The quality of diamond tools is guaranteed. Sunny Superhard Tools uses high-quality materials and advanced production technology, as well as the strict inspection system to ensure the high & stable quality of our diamond tools. While for other diamond tools trade companies, the quality of diamond tools maybe not stable, as they some times will deliver you the same diamond tools but from different suppliers. 2. Much more competitive price. Our diamond tools are much more competitive than the trading companies. Because we sell our products directly to our customers, but the trading companies will take extra profit. What's more, for our agencies, we offer unexpected price to make win-win cooperation and establish a long term business relationship. 3. Faster delivery. Fast delivery is also very important for buyers. For end-users, it means that they can use diamond tools as early as possible. For resellers, it means that they can sell the diamond tools and recover their investment as soon as possible. Unlike the trading company, the manufacturer doesn't need to communicate with other suppliers to make orders again. We can place the production order immediately and make & delivery your diamond tools as fast as possible. 4. OEM/ODM services are welcome. As an experienced diamond tools manufacturer since 1993, we have received lots of different customized diamond tools order from customers all around the world, such as the very long diamond core drill bit, the bush hammer plate, the diamond grinding shoes, the diamond segment, the diamond saw blade, and etc. The professional R&D department makes it easy to OEM/ODM diamond tools. While for trading companies, they are more likely to accept the standard diamond tools, and OEM/ODM service is usually unavailable. 5. Small orders are available. For Sunny Superhard Tools, end-users of diamond tools are also very important. Because end-users can give us feedback about our diamond tools and this information is very important for us to improve our diamond tools in the future. We're always listening to our customers' suggestions, collect the data of our diamond tools, and keeping developing better diamond tools. 6. Our sales are much more professional in diamond tools than trading companies. For Sunny Superhard Tools, all of our products are diamond tools or related machines, while trading companies maybe have many different types of cross-industry products. We are more professional and can help you to find the ideal diamond tools for your market(for resellers) or project(for end-users). Why your diamond tools are much competitive compared to other suppliers? Do you sacrifice the quality? No, we definitely won't sacrifice the quality to make a lower price. There are some ways we do to make much more competitive diamond tools: 1. To increase the productivity of our diamond tools, such as optimizing the production flow of diamond grinding pucks as follows: 2. To find the right suppliers of product materials 3. To find good agents for lower shipping fees 4. To reduce other unnecessary costs What's the lead time of diamond tools? The lead time is different for different orders. For small orders, the lead time is only about 7-15 days. For medium and big orders, our sales will confirm with you about the lead time when the order is confirmed. The fast delivery is one of our advantages, and Sunny Superhard Tools delivers diamond tools faster than most companies. What payment terms can you accept? Sunny Superhard Tools provides flexible payment methods to our customers, including the following payment ways: 1. T/T, 100% in advance. 2. Western Union 3. Paypal 4. Wechat 5. Trade Insurance order on Alibaba (Support credit card). 6. Cash Note: Generally, we accept the currency of USD/RMB only. 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