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1/4" Shank - 1" Cut Length
Sharp Tools 1/4" x 1" (25mm) Single Flute - 5 Pack
$149.95
Sharp Tools 1/4" x 1" (25mm) Single Flute - 10 Pack
$289.95
Sharp Tools 1/4" x 1" (25mm) Single Flute
$34.95
1/4" Shank - 1/2" Cut Length
Shank and Cut Diameter 1/4" (6.35mm) Cut Length: 1/2" (13mm)
$29.85
Introduction:

These have a single flute with a deep cavity to carry a lot of material out of the cut. It's like digging with a shovel that can hold much more dirt.

Description:

These end mills are designed mainly for plastic but will work with wood and it is surprisingly more quiet than the two flute end mills.

This end mill will create a flat bottom surface

Technical Specifications:

Cut Diameter: 1/4 inch (6.35mm)

Shank Diameter: 1/4 inch (6.35mm)

Cut Length: 1/2" (13mm) and 1" (25mm)

Overall Length: 2" (50mm)

Related Tutorials
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.
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.
Torque and Linear Motion Formula
Periodically, I get questions from users of the site regarding torque and how much is required to move certain masses and a recent user emailed me specifically and it gave me the happy motivation to add this page. :) These masses are things like the gantry, or the z-axis assembly with the router mounted moving on the y-axis, or the just the router mount and router within the z-axis assembly. The question is usually in the form of, can my ??? oz-in motors be used on your CNC machine.