Because the unique properties of Sold Carbide Spiral Tooling. Its edge quality is the best design of any available cutting tool. Besides, it produces great edge quality at the fastest feed rate with all kinds of routing machines.

Because the large contact area between the flute and the parts, it would produce bigger friction and obstruction during cutting which cause the flute to break. Compare to the spiral flute tool, its lifetime is shorter and suitable for softer materials.

Spiral Flute

This tool decreases the obstruction which is generated by the large contact area between the flute and the parts with the spiral flute design. It not only can do the high-speed machining but also increase the efficiency of the working process. Compare to the straight flute, the lifetime is longer and suitable for harder materials.

Up-Cut Spirals

The “up-cut spiral” means a right hand spiral with a right hand rotation of cut. It will make the chips “coiled up” during cutting. It is very useful for slotting cuts or where is not easy to remove the chip. The tool will “lift” the part up in some situations. It may require additional holding power or stepped cutting depths.
This tool will leave a smooth cutting result on the bottom of a through cut. Nevertheless it might leave some ragged edge on the top edge on certain materials.
Up-cut spiral tools can be used for straight plunge or drill, but it will cause bits breakage easily, We suggest you to use the diagonal plunge to start the cut.

On the contrary, the “down-cut spiral” is right hand cut with a left hand spiral. It causes the chip flow to be directed downward. It also helps hold the part being cut down. The working result is smooth on the top and fuzzy on the bottom.
Sometimes the downward chip flow may cause jammed problems especially in a blind slotting situation. Down-cut bits tend to preload the routing system that can mainly improve the part stability during a marginal routing setup.
Down-cut bits cannot be used to plunge straight into to the part as it will cause broken bits or jammed chip.

A compression spiral is designed with both up-cut and down-cut flutes. This design can prevent chipping or fuzz on both top and bottom of the cut.
Compression spirals are used extensively for cutting double sided laminates, but can be used on natural woods where edge fuzz is a problem.

The tool’s cutting edge is smooth. The cutting result is even and smooth, it is suitable for all kinds of working processes when high quality surface finish is required.

Roughing Tools

Finishing Tool with Chipbreaker

The special design of cutting edge breaks the chips into even smaller pieces to reduce the power consumption and vibration. It also makes the chip removal more easily. It is recommended for hardwoods and dense materials which require higher feed rates.
The quality of surface finishing ：
Finishing Tools ＞ Finishing Tool with Chipbreaker ＞ Roughing Tool
The result of chip break ：
Finishing Tool with Chipbreaker ＞ Roughing Tool ＞ Finishing Tools

Dowel Drill Bits – Brad Point / V-Point

Brad Point ： It is recommended for non-through boring.
V-Point: It is recommended for through boring.