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.
WARNING: Proposition 65 Label for all routers shown below, except the following: F3467, F3467A, F3468, F3468A.
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 ea Price | 36 ea Price | |
F3307P | 1/4"------3/8" | 1/4" | 2" | crescent | poor | excellent | soft plastics | | | | Add to cart | Add to list |
F3306N | 1/4"------3/8" | 1/4" | 2" | crescent | poor | excellent | hard plastics | | | | Add to cart | Add to list |
F3307N | 3/8"-----11/8" | 3/8" | 3" | crescent | poor | excellent | soft plastics | | | | Add to cart | Add to list |
F3306H | 3/8"-----11/8" | 3/8" | 3" | crescent | poor | excellent | hard plastics | | | | Add 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 ea Price | 36 ea Price | |
F3325A | 1/8"------1/2" | 1/4" | 2" | endmill | poor | excellent | 30° | | | | Add to cart | Add to list |
F3325F | 1/4"------3/4" | 1/4" | 21/2" | endmill | poor | excellent | 30° | | | | Add to cart | Add to list |
F3325J | 3/8"------7/8" | 3/8" | 21/2" | endmill | poor | excellent | 30° | | | | 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 ea Price | 36 ea Price | |
F3335A | 1/8"------1/2" | 1/4" | 2" | endmill | good | poor | 30° | | | | Add to cart | Add to list |
F3335E | 1/4"------3/4" | 1/4" | 21/2" | endmill | good | poor | 30° | | | | Add to cart | Add to list |
F3335H | 3/8"------7/8" | 3/8" | 21/2" | endmill | good | poor | 30° | | | | 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 ea Price | 36 ea Price | |
F3363A | 1/8"------1/2" | 1/4" | 2" | endmill | excellent | poor | 30° | | | | Add to cart | Add to list |
F3363B | 5/32"---- 9/16" | 1/4" | 2" | endmill | excellent | poor | 30° | | | | Add to cart | Add to list |
F3363C | 3/16"-----5/8" | 1/4" | 2" | endmill | excellent | poor | 30° | | | | Add to cart | Add to list |
F3363D | 1/4"------3/4" | 1/4" | 21/2" | endmill | excellent | poor | 30° | | | | 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 ea Price | 36 ea Price | |
F3467 | 3/8"------11/8" | 3/8" | 21/2" | no | | | | Add to cart | Add to list |
F3467A | 3/8"------11/8" | 3/8" | 21/2" | yes | | | | Add to cart | Add to list |
F3468 | 1/2"------11/2" | 1/2" | 31/2" | no | | | | Add to cart | Add to list |
F3468A | 1/2"------11/2" | 1/2" | 31/2" | yes | | | | Add 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 ea Price | 36 ea Price | |
F3372C | 1/4"------3/4" | 21/2" | 1/4" | 18,000 | | | | Add to cart | Add to list |
F3372G | 3/8"------7/8" | 21/2" | 3/8" | 18,000 | | | | Add to cart | Add to list |
F3372J | 1/2"-------1" | 3" | 1/2" | 18,000 | | | | Add 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.