SDS Plus and SDS Max drill bits can be used for drilling operations in concrete, reinforced concrete, granite and similar materials. SDS-Plus has a drilling diameter of 4mm to 32mm and a drilling depth of 110mm to 1000mm; SDS-Max has a drilling diameter of 12mm to 52mm and a drilling depth of up to 1200mm. Sds Drill Bits,High Carbon Steel Drill Bits,Concrete Drill Bit,Flat Hammer Drill Bits Danyang Yongshun Tools Co.,Ltd , https://www.china-drill-bit.com
SDS Drill Bits are available with two (properly shaped integral straight edges), three (star arrangement) or four (integral cross arrangement) inserts, made of cemented carbide. They are deeply embedded in the steel head with industrial solder and are characterized by a high degree of mechanical and heat resistance.
SDS Plus and SDS Max Bits should not only be selected based on the diameter of the drilled hole, but also their depth standard. Both of these measures are necessary to maximize productivity.
Abstract According to the Japan Tool Association, China has become the world’s largest consumer of machine tools, surpassing Japan, the United States, and Italy. In terms of tool production value, the output of cemented carbide tools has been steadily rising in recent years, while high-speed steel tools have started to show a declining trend. The import and export volume of cemented carbides has also seen a significant increase. Asia remains the primary destination for these exports, followed by Europe, with North America and other regions coming next.
High-speed machining is now widely recognized as an efficient technology that boosts productivity and lowers manufacturing costs. The growing emphasis on dry or micro-lubrication techniques reflects the industry's focus on reducing environmental impact and operational expenses. For tool manufacturers and coating suppliers, enhancing productivity is key. By improving cutting performance—such as increasing cutting speed and reducing time per unit—manufacturing costs can be cut by up to 15%. As machining demands continue to rise, there is a greater need for advanced tool materials, improved coatings, and more sophisticated tool designs to meet these challenges.
Currently, the market share of domestically produced cemented carbide indexable tools is still lower compared to imported alternatives. This is primarily due to several factors. First, domestic producers often lack strong quality awareness, resulting in inferior product quality, limited variety, and incomplete specifications. This makes it difficult to improve overall tool performance. In terms of appearance, imported tools generally have a better finish, color, and texture. When it comes to performance, imported tools offer higher dimensional accuracy, better stability, longer durability, and higher re-sharpening rates. They also provide better interchangeability and meet precision requirements after assembly.
Second, pre-sales and after-sales services are not as comprehensive in many domestic companies. Foreign tool manufacturers typically offer detailed support, including tool selection, supply, adjustment, and timely replacement. Domestic manufacturers often fall short in this area, providing only basic and generic service.
Third, small workshop-style production still dominates in some domestic factories. Due to economic constraints, many companies rely on outdated methods, with low-skilled workers and simple equipment. This leads to inconsistent quality and persistent issues in both machining and assembly processes.
According to expert analysis, the tool material industry has entered an era dominated by cemented carbide. Compared to high-speed steel, cemented carbide offers superior performance and higher cutting efficiency. Combined with super-hard materials, it plays a crucial role in modern high-efficiency machining. Without reliable tool materials, any innovation in tool design or cutting technology lacks a solid foundation. Addressing this issue requires structural adjustments in the industry, accelerated development of production bases for hard alloy materials, and enhanced R&D capabilities to increase the proportion of cemented carbide tools in the market.
At the 2014 China International Cemented Carbide Exhibition, a special high-performance technology zone was introduced. Featuring leading brands such as Sandvik, Kennametal, Shitaike, Walter, IMC, Mitsubishi, Zhuzhou Diamond, and Xiamen Golden Heron, this exhibition highlighted the latest advancements in high-performance tool technology. The event showcased innovative "green, environmentally friendly, low-carbon, and energy-saving" projects in the hard alloy sector, offering attendees a glimpse into the future of advanced manufacturing. It was one of the most impressive displays at the event, attracting widespread attention from industry professionals and enthusiasts alike.