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(65-025) Onsrud Super 'O' Cut and Shank Diameter: 1/4" (6.35mm) Cut Length: 1" (26mm)
$54.00
(65-026) Onsrud Super 'O' Cut and Shank Diameter: 1/4" (6.35mm) Cut length: 1-1/4" (31.75mm)
$60.35
Introduction:

This is a very high quality end mill for cutting plastics, wood and aluminum.
Will create a flat bottom surface
Cut Diameter - 1/4 inch or 6.35mm
Shank diameter - 1/4 inch or 6.35mm

Description:

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.

Related Tutorials
greenBull cutting aluminum graphic poster Cutting Aluminum with the greenBull CNC and Onsrud End Mill
In this video, we are showing 2 examples of cutting aluminum. The first example will be dry cutting which is cutting in the absence of a coolant or cutting fluid.
greenBull cutting aluminum Cutting Aluminum Fail Using a Cheap End Mill
In this video we’re cutting an aluminum ring from a solid block of 6061 aluminum. The client gave us specifications that the ring needs to be 1 and a half inches in length, about 4 inches for the outside diameter, and about 1/4 inch for the wall thickness.
Bill of Materials
Many of you have asked me to provide a list of materials and costs for the CNC Machine. Here, I will provide a list of the materials, costs and where they can be purchased. In the list, I will also include various alternatives for different types of applications. This may include types of cutting tools, types of motors for the axes, etc. I will keep this list alive and updated in the "stuff for sale" in lieu of a better place. Please write me with suggestions, and if you know of better prices and places to get these materials. This list is a work in progress, since I wanted to make it available immediately. Most prices are from memory, until I find my receipts somewhere in one of my packing boxes, so you may see numbers change, but it gives you a general idea.