This is a solid carbide, polished end mill for excllent cutting of plastics, wood, aluminum and solid surface. The flute geometry is also excellent at chip clearing chips from the material (getting the material out of the cutting kerf).

For the Onsrud end mills listed, here are the chip loads and suggested feed rates:

Soft Wood, Hard Wood, MDF (Medium Density Fiberboard), Soft Plywood, Hard Plywood (18,000 RPM):
Chip load: .001 to .003
Suggested Low End Feed Rate: 18 IPM
Suggested High End Feed Rate: 54 IPM

Soft Plastic (12,500 RPM) :
Chip Load: .002 to .004
Suggested Low End Feed Rate: 25 IPM
Suggested High End Feed Rate: 50 IPM

Hard Plastic (18,000 RPM):
Chip Load: .002 to .004
Suggested Low End Feed Rate: 36 IPM
Suggested High End Feed Rate: 72 IPM

Sheet Aluminum (16,000 RPM):
Chip Load: .002 to .004
Suggested Low End Feed Rate: 32 IPM
Suggested High End Feed Rate: 64 IPM

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