Tooling Router Bits 101: Know Your Bits
Source: https://toolings.co.za/router-bits-101-know-your-bits
- published: 2022-04-11 10:11:05
- modified: 2022-04-11 10:35:25
Tooling Router Bits 101: Know Your Bits
Anatomy of A Router Bit
There are a few facets to a Router Tooling Mill Bit measurements like (a) Total Length, (b) Spiral Flute (c) Shank Diameter, (d) Shank Length, (e) Bit Length, (f) Bit Diameter, to name a few.
Tooling End Geometry
Different end-geometry lends its self to different applications & finishes.
- .d{fill:none;stroke:#1d1d1b;stroke-miterlimit:10;stroke-width:2px;}
Ball End Geometry
- .e{fill:none;stroke:#1d1d1b;stroke-miterlimit:10;stroke-width:2px;}.f{clip-path:url(#d);}
Corner End Geometry
- .d{fill:none;stroke:#1d1d1b;stroke-miterlimit:10;stroke-width:2px;}
Square End Geometry
- .d{fill:none;stroke:#1d1d1b;stroke-miterlimit:10;stroke-width:2.33px;}
Profile End Geometry
Spiral Flute Count
A general rule of thumb is that the higher the flute count - the higher the possible the cut rate.
- Single (1) Flute (Top View)
- Double (2) Flute (Top View)
- Tripple (3) Flute (Top View)
- Quad (4) Flute (Top View)
- Penta (5) Flute (Top View)
- Hexa Flute (6) (Top View)
- Octa (8) Flute (Top View)
Spiral Angle & Direction: Straight vs Up-Cut vs Down-Cut vs Compression-Cut Toolings
Straight Bit
Up-Cut Bit
Down-Cut Bit
Compression Bit
Advantages
- Good Edge Quality On Most Materials
- Moderate Chip Clearing
- Best Ejection For Chips, Away From The Kerf.
- Good Quality On Bottom Faces When Cutting Through.
- Allows For Faster Speeds Than Downward Cut Tooling Bits.
- Ejects Chips Down Ward, Good Face Quality On Top Face.
- Downward Force Helps With Cutting On Thiner Boards
- Designed To Cut Vaneer Or Laminate Materials At Full Depth In One Pass
- Cleaner Edge On Top And Bottom Face
Disadvantages
Less Efficient Than Spiral Tooling
- Prone To Chipping Or Fraying Of Top Edge
- Upward Motion Can Cause Lifting In Materials
- Prone To Chipping Or Fraying Of Bottom Edge - When Cutting Through.
- Lower Feed-Rates That Up-Cut Tooling Bits.
- Due To Nature of Construction, Compression Toolings Are A Lot More expensive.
- Prone To Heat Issues - Due To Less Effective Material Ejection Rates.
Recommended Materials
Generally Fits Most Materials
Plastics, Aluminium Etc. Generally Materials With Lower Heat Tolerances.
Plywood, Laminates, MDF, Hardwoods, Softer woods.
Plywood, Laminates, MDF, Hardwood, Softer woods.