Huizhou Feisite Precision Tools Co., Ltd. is one of the most reliable manufacturers and suppliers of Down Cut Router Bits in China, also supports customized service with reasonable price. Welcome to buy advanced Down Cut Router Bits in stock here from our factory. Contact us for quotation and free sample.
Please do not use Downcut bit to drill!
What is a downcut router bit?
Different from the upcut router bit, a downcut bit features downward flutes from left to right.
Downcut spiral bits slowly evacuate wood chips downward, leaving a very crisp and clean top edge without any fraying and splintering. Unlike an upcut spiral router bit which throws chips out directly, a downcut router bit requires a relatively slower cut speed because it needs more time to remove those chips.
If a downcut bit works at a very fast speed, a build-up of wood chips inside the groove may cause overheating or even break the bit. Downcut bits are suitable for creating shallow grooves or dados on veneers or laminates to prevent tear-out on the top surface. It is also ideal for sizing, trimming, and pattern cutting. However, the bottom edge can be frayed as the chips are going downward and continuously recut.
Down Cut Router Bit Application
Spiral Down Cut router bits are commonly used in finishing process, such as:
-Mobile phone's keypad processing,
-Plate processing,
-Liquid crystal display panel,
-Acrylic lenses, etc.
With this method, the cutting force is downward, so the workpiece isn't lifted up and isn't easily displaced. Furthermore, chip removal from the machined surface is also capable of reducing cutting edge wear and reducing burrs on the machined surface. As a lazy worker, you don't have to worry about cleaning off chips on your work.
Downcut spiral bits are best used for thinner materials that will be pushed down into the machine bed rather than being lifted with an up-cut spiral. This can be particularly useful when using vacuum hold down where maintaining the seal between the material and sacrificial bed is crucial. These tools are predominantly used when a high-quality cut finish is required on the top surface of cut parts. Downward spiral tools often require reduced cutting speeds because the chips are pushed back into the material. The chip extraction is generally less effective with this type of tool than it is with an upcut spiral tool. Downcut spiral tools should be used when processing thin materials, 1/8" (3.175mm) or thinner.
Size we have
As a manufacturer with 20 years experience,we have more sizes,if you do not find the size from the follow table you need,please feel free to tell us, we can OEM for you
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