Which Chinese Drill Has The Best Precision

Kunshan Meiyaxing Hardware Machinery Co., Ltd. is a branch of Hong Kong Meiya International Trading Company in China and is a company specializing in CNC tool wholesale. We are committed to providing customers with high-quality CNC tool products and professional services to meet customers' production and processing needs in various industries. Our company has reached long-term strategic cooperation with well-known domestic manufacturers, has high-quality procurement channels, a comprehensive product line and diversified tool specifications, and all kinds of CNC tools are available to meet various production and processing needs. At the same time, we will continue to launch new products to meet the different needs of customers. Our service team has professional technical level and high-quality after-sales service, and can provide customers with technical support, installation and adjustment We provide a full range of services such as testing and maintenance to ensure that customers have a perfect experience during use. At the same time, we will also customize personalized tool solutions according to the specific needs of customers to ensure that every customer gets the best service and experience. In the future development, we will continue to uphold the business philosophy of "quality first, service first", continuously improve service levels and product quality, create more value for customers, and help customers achieve better development.
Why is your drill always unstable?
If the hole has strict tolerances or surface finish requirements, secondary processing such as boring or reaming usually completes the hole to the final processing size. In these cases, the main value of the drill may be to punch as many holes as possible as quickly as possible, and the user can see whether the positioning is accurate. .
But this is not always the case. In some applications, a little extra time and effort may help a drill meet quality standards in a single operation. Or, it may be determined that the quality of the drilled hole affects its ability to accept high-quality secondary operations. For example, if the hole is drilled at too high a speed, the heat may work-harden the material, which can significantly shorten the life of the tap or even make the material too hard to tap.
It may make a difference if a carbide drill drills 2 holes or 200 holes; if it is 200, the quality focus may be mainly on the speed at which the job is completed (efficiency); if the job only requires 2 holes, then spending a little more time and effort on the drilling process, or using a specially designed tool to drill and ream in a single operation, can produce a quality result without the additional process. Holes of quality specifications.
Carbide drills are actually used in many fields, but many technologies are also overlooked. The design of the helix angle is also very particular. For example, low helix angle or straight groove drills are very suitable for short-chip materials such as cast iron and ductile iron. For example, a helix angle of 20-30° is conducive to general drilling in various hard materials because the angle helps chip evacuation.
However, aluminum and copper tend to have high helix angles. This high helix angle provides a predictive effect and helps chip evacuation. Choosing a drill with the right characteristics for a specific material and application will extend tool life and obtain a good finish.
Coatings also make a big difference. Typically, for example, some brands of drills will use a composite coating that can fully play a role. The coating contains titanium and chromium and titanium silicon layers.
Silicon makes the coating highly lubricating, so the chips can slide off and avoid the formation of built-up edge. Avoiding built-up edge is the key to maintaining the tool's good cutting ability and avoiding leaving marks on the hole wall.
Some new coatings are combined with higher speeds to remove material to produce holes with a good finish. These coatings need to be able to withstand the heat generated by high-speed movement.
We will continue to explain the key points in the next issue.
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