This is a very high quality end mill intended to cut plastic, aluminum, wood and solid surface and is Onsrud's super 'O' geometry. We use this end mill exclusively to cut our MDO parts and does a great job. The tool is very quiet, with their premium micro grain carbide there is superior wear resistance and strength. The top has a special geometry to better bottom finish and also works well for plunging into materials.

Soft Wood, Hard Wood, MDF (Medium Density Fiberboard), Soft Plywood, Hard Plywood:
Chip load: .004 to .006
Suggested Low End Feed Rate: 72 IPM
Suggested High End Feed Rate: 108 IPM

Soft Plastic, :
Chip Load: .008 to .012
Suggested Low End Feed Rate: 144 IPM
Suggested High End Feed Rate: 216 IPM

Hard Plastic:
Chip Load: .010 to .012
Suggested Low End Feed Rate: 180 IPM
Suggested High End Feed Rate: 216 IPM

Sheet Aluminum (16,000 RPM):
Chip Load: .003 to .006
Suggested Low End Feed Rate: 48 IPM
Suggested High End Feed Rate: 96 IPM

All Feed Rates are based on 18,000 Spindle RPM except for the sheet aluminum.

Ask a question about the Onsrud 1/4" Cut Diameter Single Flute for Plastic, Wood, Aluminum and Solid Surface Cutting End Mill:

Previously answered questions: