Diamond tools are manufactured worldwide, with a large number of global manufacturers. The pressure on pricing is enormous, with the trend today being that prices are falling, and with them the quality in many cases. There are many fortune seekers in this industry who promise big but don’t deliver. Basically, the development and manufacture of good diamond tools is a science that requires great knowledge from the serious manufacturers. Every country in the world today usually has a number of manufacturers of diamond tools, but in most countries, the vast majority primarily sell their products domestically. But there are a few countries where large companies that export can be found. During the last decade, the focus on diamond tools has shifted slightly. Maybe not exactly changing but included with other brands from other countries. The major suppliers of professional diamond tools have for decades been South Korea followed by China, though in the last decade the world market has seen a significant increase in diamond tools from India.

50years of developing and manufacturing diamond tools

One brand that has shown a large increase in exports is the Mumbai based manufacturer Dee Tec. The current Dee Tec Tools brand traces its history back to Diamant Boart India. This was founded in 1972 by Deepak Doongursee which in the beginning mainly manufactured diamond segments of various types. The dominant sector that bought and used Dee Tec segments was initially the stone industry. Since the beginning of the 2000 things have changed. Dee Tec started approaching the construction industry, and since then growth in the sector has rapidly been seen. Dee Tec started exporting its products quite a while ago, but it is during the last decade that exports have really taken off with the construction sector being largely responsible for this increase. Today, production consists of an entire range of diamond tools for wall and floor saw blades, diamond wire as well as core drill bits.

PDi Magazine had the opportunity to meet some of the Dee Tec staff in connection with the Demtech trade fair and IDA conference held in New Delhi in December 2024. The meeting was attended by Dee Tec’s co-owner and CEO, Gaurang Doongursee, the company’s export manager, Kanish Gupta and the sales manager for the Indian market, Vijay Poojary. Gaurang, son of the founder Deepak Dongursee, has diamond tool manufacturing in his blood. Kanish has worked at the company for almost 10years and Vijay for a full 20years. The company has its head office and sales department in central Mumbai. The manufacturing plant is located about an hour northeast of Mumbai. The company currently employs around 40 people in total. 

The export share is today some 70% and the largest export market is Europe, with almost 60% of all export products for the construction industry currently sold to customers there. “We feel that we are building a fairly strong foothold in the European market now and our customers are satisfied with our range and the quality of our products,” says Gaurang Doongursee. The remaining 30% of production is mainly diamond tools for the stone industry, which are both exported and sold locally. However, the production of diamond tools for the local construction industry in India is also increasing in line with the country’s strong expansion in recent years. The countries in Europe that are the largest trading partners are Germany, France, Poland, Scandinavia, Austria, Luxembourg, Spain and Portugal.

Strong focus on Europe and North America

Gaurang says that the focus is now on increasing sales further in the European market by establishing more distributors. Today, most of the products are sold through distributors in Europe, but in some cases, there is also direct sales to end users. “However, in recent years, we have felt the effects of the recession in Europe in that orders have become more irregular. However, we believe that this is of a temporary nature. When inflation decreases and interest rates go down, construction projects will start rolling again. We are already noticing a certain upturn,” says Gaurang.

Europe as a continent is the single largest market, but in second place is the North American market, where the US dominates. “In addition to growing in Europe, an equal priority will be to grow in the North American market, especially in the USA. Our product range fits equally well there, and we are very adaptable when it comes to customising our products to user specifications,” says Kanish Gupta. “We are now looking for a suitable general agent for our products in the American market who can build up a sales network of dealers,” Gaurang adds. Great potential is seen in the USA, closely followed by the Canadian and Mexican markets, although there has also been a certain decline even here in recent years. The economic situation and the generally uncertain situation in the world play a role. “Until today, we sell directly to end users in these countries,” says Kanish.

In addition to Europe and the USA, Dee Tec’s products are exported to a number of other countries in the Middle East, Asia and South America. Brazil, for example, is a growing market and here the company has a distributor in the state of Espirito Santo. The company also has a presence in Greece with a sister company, Dee Tec Hellas, created primarily to service the local Greek stone industry with an office in Drama.

Full provider of diamond tools but focus on diamond wire

As for the products, Dee Tec manufactures and offers a complete range of professional diamond tools for the construction and stone industries. The product line includes wall and floor sawing blades, diamond wires, and core drill bits. Core drill sizes range from 50mm to 300mm, while blade sizes span from 250mm to 800mm. The ‘HBB’ diamond wire series is at the heart of Dee Tec’s offerings. The name HBB reflects the unique ‘Hot Isostatic Pressing (HIP) - Brazed Bead’ technology that underpin its manufacturing. These wires stand out for their innovative and unique diamond beads.

The HIP technology allows diamond beads to have two to three times more diamond when compared to electroplated or vacuum brazed wires, while the 3D diamond placement technology ensures that the diamond is evenly distributed to the inner core of the bead. The inhouse developed bead lock technology secures the beads to the wire to avoid unwanted bead or displacement further improving performance and safety. A number of procedures are followed to ensure that the highest safety standards are met. To this end, the diamond wire is also certified under the EN13236 rating for product safety compliance. 

With regards to the environmental aspect, the wires are made with a ‘Green bond’, which contains near zero heavy metals, which can be harmful to the environment and users. Depending on the application, these wires are offered with between 40 and 55 diamond beads per meter. The company  also produce application specific diamond wires, working with users to ensure the best performance for their use, such as offshore and subsea or steel cutting wires.

The HBB diamond wire combines the best of both worlds to give a long service life associated with sintered wires while also offering the fast cutting speeds of electroplated and vacuum brazed wires, making it a versatile and economical choice. Encased in rubber for enhanced flexibility and heat resistance, these wires perform exceptionally well even in demanding conditions.

Dee Tec’s wall saw blades have W-shaped segments and built in layers where the diamonds are placed using the 3D ‘Diamond Placement Technology’ (3DP Technology). The blades are automatically welded to provide the best possible speed and safety. Dee Tec’s series of floor saw blades have U-shaped segments and are manufactured using the same method as the wall saw blades. The core drills are welded and the diamonds are placed using 3DP Technology with uniform diamond concentration which creates both fast drills with high quality and longevity.

What has undoubtedly become Dee Tec’s specialty is the development and manufacture of diamond wire, and here the manufacturer is starting to build a strong position internationally and is starting to challenge other large international manufacturers in the field of diamond wire. Dee Tec’s manufacturing of diamond wire dominates with a full 80% of Dee Tec’s production of diamond tools. “We do not have a lower priority on the development of the other tools in our range, but we have had a very good response among our customers for our range of diamond wire. All of our products are of high quality and safety and we very rarely receive any complaints,” says Gaurang.

The company invests heavily in research and development to improve current offerings and develop new products. One such new product the company introduced is the ‘Pagoda’ diamond wire with HBB beads. The main aim of this product is to offer the highest possible cutting speed. To achieve this, the Pagoda diamond wire beads have a unique three step structure to minimise contact area and resistance while increasing cutting speeds. The results during internal and client side testing speak for themselves. The Pagoda diamond wire is Dee Tec’s official nomination for the Diamond Award 2025, which will be presented by the IACDS at bauma 2025.

Dee Tec Tools is an active member of the American industry association CSDA, and the IACDS. The company has showcased its products at prominent trade shows, including the Canadian Concrete Expo 2024, GIC Italy 2024, Marmomac 2024, and Demtech 2024 in the recent past. The team is also a frequent visitor to international trade fairs and will be present at bauma in April 2025. The world will certainly see more of Dee Tec in the near future. 

www.deetec.in