Surfacing Surfacing
SpeTool 1.5" Surfacing/Spoilboard Bit (1/4" Shank)
SpeTool
$18.99
Overview
SpeTool's 1.5-inch surfacing bit covers more area per pass than the 1-inch version, significantly speeding up spoilboard flattening. The 3 cutting edges produce a smooth, flat surface. However, the large cutting diameter on a 1/4-inch shank demands extra caution - use very shallow passes and moderate feed rates to avoid chatter.
Best for
Faster spoilboard flattening on hobby CNC routers with 1/4" collets.
Specifications
Shank Diameter
1/4"
Cutting Diameter
1.5"
Flute Count
3
Material
Solid Carbide
Coating
Uncoated
Type
Surfacing
Material Compatibility
Wood Plywood MDF Soft plastics
Not rated for aluminum. Use a ZrN or DLC coated single-flute end mill for aluminum cutting.
Pros
- Covers 50% more area per pass than 1" bit
- 3 cutting edges for smooth surface
- Dramatically faster spoilboard flattening
- Fits 1/4" collet machines
Cons
- Large diameter on small shank - be careful
- Must use very shallow passes
- Can cause significant chatter on light machines
- Higher forces on the spindle bearings