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Home » Product » Spiral flute routers

Spiral flute routers

Spiral upcut routers, spiral downcut routers, multi-spiral flute routers, aramid routers, router bits.

Please call us for a quote on any additional sizes or styles of router bits you use. These bits are solid carbide, made in USA, +.000–.003 cutting edge tolerance, and H6 shank tolerance.

Additional routers include Diamond pattern routers and Straight flute routers . Other cutting and shaping tools are shown on our Cutting, shaping, grinding tools page.

Spiral upcut, 1 flute

Spiral 1 flute router bits should only be used in an automatic feed operation. They are good for use on all materials. Upcut routers are used when a good bottom finish is desired on the material. Chips flow in an upward direction.

Item
Number
Cutting edge
Dia. & length
Shank
Dia.
Overall
Length
End
Point
Top
Material finish
Bottom
Material finish
Designed
For
Each
Price
12 each
Price
36 each
Price
 
F3307P1/4"------3/8"1/4"2"crescentpoorexcellentsoft plasticsAdd to cart | Add to list
F3306N1/4"------3/8"1/4"2"crescentpoorexcellenthard plasticsAdd to cart | Add to list
F3307N3/8"-----11/8"3/8"3"crescentpoorexcellentsoft plasticsAdd to cart | Add to list
F3306H3/8"-----11/8"3/8"3"crescentpoorexcellenthard plasticsAdd to cart | Add to list

Spiral upcut, 2 flute

Spiral 2 flute router bits should only be used in an automatic feed operation. Used for hard plastics and aluminum. Upcut routers are used when a good bottom finish is desired on the material. Chips flow in an upward direction.

Item
Number
Cutting edge
Dia. & length
Shank
Dia.
Overall
Length
End
Point
Top
Material finish
Bottom
Material finish
Helix
Angle
Each
Price
12 each
Price
36 each
Price
 
F3325A1/8"------1/2"1/4"2"endmillpoorexcellent30°Add to cart | Add to list
F3325F1/4"------3/4"1/4"21/2"endmillpoorexcellent30°Add to cart | Add to list
F3325J3/8"------7/8"3/8"21/2"endmillpoorexcellent30°Add to cart | Add to list

Spiral downcut, 2 flute

Spiral 2 flute router bits should only be used in an automatic feed operation. For hard plastics and aluminum. Downcut routers are used when a good top finish is desired on the material. Chips flow downward.

Item
Number
Cutting edge
Dia. & length
Shank
Dia.
Overall
Length
End
Point
Top
Material finish
Bottom
Material finish
Helix
Angle
Each
Price
12 each
Price
36 each
Price
 
F3335A1/8"------1/2"1/4"2"endmillgoodpoor30°Add to cart | Add to list
F3335E1/4"------3/4"1/4"21/2"endmillgoodpoor30°Add to cart | Add to list
F3335H3/8"------7/8"3/8"21/2"endmillgoodpoor30°Add to cart | Add to list

Spiral downcut, 4 flute

Spiral flute router bits should only be used in automatic feed operations. For hard plastic. Feed rate of 150 for fiber reinforced plastics. Downcut routers produce the best finish to the top of the material. Chips flow downward.

Item
Number
Cutting edge
Dia. & length
Shank
Dia.
Overall
Length
End
Point
Top
Material finish
Bottom
Material finish
Helix
Angle
Each
Price
12 each
Price
36 each
Price
 
F3363A1/8"------1/2"1/4"2"endmillexcellentpoor30°Add to cart | Add to list
F3363B5/32"---- 9/16"1/4"2"endmillexcellentpoor30°Add to cart | Add to list
F3363C3/16"-----5/8"1/4"2"endmillexcellentpoor30°Add to cart | Add to list
F3363D1/4"------3/4"1/4"21/2"endmillexcellentpoor30°Add to cart | Add to list

Multi-spiral flute

Reduces fiber breakout in carbon fiber reinforced polymer materials used in manufacturing of aerospace components. Unique design structure provides longer life and requires less cutting force. With or without an end cut.

Item
Number
Cutting edge
Dia. & length
Shank
Dia.
Overall
Length
End
Cut
Each
Price
12 each
Price
36 each
Price
 
F34673/8"------11/8"3/8"21/2"noAdd to cart | Add to list
F3467A3/8"------11/8"3/8"21/2"yesAdd to cart | Add to list
F34681/2"------11/2"1/2"31/2"noAdd to cart | Add to list
F3468A1/2"------11/2"1/2"31/2"yesAdd to cart | Add to list

Aramid routers

Good top and bottom material finish. Endmill end point.

Item
Number
Cutting edge
Dia. & length
Overall
Length
Shank
Dia.
Max.
RPM
Each
Price
12 each
Price
36 each
Price
 
F3372C1/4"------3/4"21/2"1/4"18,000Add to cart | Add to list
F3372G3/8"------7/8"21/2"3/8"18,000Add to cart | Add to list
F3372J1/2"-------1"3"1/2"18,000Add to cart | Add to list

End points on these router bits

Crescent points, typically found on 1 flute router bits, work well in both plunging and flat bottom cutting applications.

Endmill points, most often on 3 and 4 flute router bits, are good for achieving smooth finish on a flat bottom surface.

Drill end points, on the diamond bur fiberglass finisher, allows for plunging into interior routing applications.