Straight and Spiral Router Bits for Plastic


The smooth flutes and sharp cutting edges on these router bits cleanly cut square slots, pockets, and edges in most plastics, including polyethylene, polycarbonate, and vinyl. They do not have a pilot, so guide your router along a straight edge when hand routing to make accurate cuts.
Use carbide bits for longer tool life and faster cutting speeds than high-speed steel. Ceramic-coated carbide bits have a coating that increases the hardness of the bits and protects them from high heat, making them last about 2.5 times longer than uncoated bits.
Bits with spiral flutes leave a smoother finish than straight-flute bits. Bits with upward chip removal lift chips up for applications that require a smooth finish on the bottom edge of the cut. Securely clamp the workpiece before routing to prevent lifting. Bits with downward chip removal push chips down for applications that require a smooth finish on the cut's top edge.
Bits with a plunge cut type let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work such as trimming, contouring, and finishing.
Choose a bit with one flute for a faster cut; bits with more flutes produce a smoother finish.
Cutting Dia. | Lg. of Cut | Shank Dia. | Overall Lg. | Number of Flutes | For Tool Type | For Use On | Cut Type | Each | |
Uncoated Carbide | |||||||||
---|---|---|---|---|---|---|---|---|---|
Spiral Flutes with Upward Chip Removal | |||||||||
1/16" | 1/4" | 1/4" | 2" | 1 | CNC Machine | Hard Plastic, Soft Plastic | Plunge | 0000000 | 000000 |
Spiral Flutes with Downward Chip Removal | |||||||||
1/16" | 1/4" | 1/8" | 2" | 1 | CNC Machine | Hard Plastic, Soft Plastic | Plunge | 0000000 | 00000 |
Ceramic-Coated Carbide | |||||||||
Spiral Flutes with Upward Chip Removal | |||||||||
1/16" | 1/4" | 1/8" | 2" | 1 | CNC Machine, Hand Router, Router Table | Hard Plastic, Soft Plastic | __ | 0000000 | 00000 |
Spiral Flutes with Downward Chip Removal | |||||||||
1/16" | 1/4" | 1/8" | 2" | 1 | CNC Machine, Hand Router, Router Table | Hard Plastic, Soft Plastic | __ | 0000000 | 00000 |
Spiral Router Bits for Steel and Stainless Steel



The aluminum-titanium-nitride (AlTiN) coating on these bits resists heat and wear when cutting steel and stainless steel. They have a square cut style for creating slots, pockets, and edges. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the bit from breaking. With spiral flutes, they leave a smoother finish than straight-flute bits and are good for making plunge cuts. The flutes lift chips up from the workpiece for applications that require a smooth finish on the bottom edge of the cut. Securely clamp your material before routing to prevent lifting. Bits with more flutes produce a smoother finish.
For technical drawings and 3-D models, click on a part number.
Router Bits for Composites



The sharp cutting edges and flute shapes of these tools are specifically designed to cut through tough composite materials, such as carbon fiber and fiberglass, with minimal resistance. This means less strain on your router and more control when cutting, leading to smooth cuts. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel.
Diamond-Pattern Flutes—Small, staggered teeth aggressively cut, yet leave a smooth finish.
Use bits with a square cut style to cut slots, pockets, and edges. Bits with a drill/mill cut style have a pointed end for easier plunge cuts than bits with a square cut style.
Plunge-cutting bits let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work, such as trimming, contouring, and finishing.
Cutting Dia. | Lg. of Cut | Shank Dia. | Overall Lg. | For Tool Type | For Use On | Each | |
Uncoated Carbide | |||||||
---|---|---|---|---|---|---|---|
Diamond-Pattern Flutes with a Square Cut Style | |||||||
1/16" | 3/16" | 1/8" | 1 1/2" | CNC Machine, Hand Router, Router Table | Fiberglass | 0000000 | 000000 |
Diamond-Pattern Flutes with a Square Cut Style—Plunge Cutting | |||||||
1/16" | 3/16" | 1/8" | 1 1/2" | CNC Machine | Fiberglass | 0000000 | 00000 |
Diamond-Pattern Flutes with a Drill/Mill Cut Style—Plunge Cutting | |||||||
1/16" | 3/16" | 1/8" | 1 1/2" | CNC Machine | Fiberglass | 0000000 | 00000 |