Deburring Tool

[rossbotics]

DeBurring tools are very handy and useful to have, they come in a multitude of shapes and sizes, I have been using for years these disposable units with a B-10 blade, B-10 blades will work in holes, inside radiuses and straight edges which covers about 95% of my deburring, any other deburring gets the old file treatment or a scraper.

I bought this new deburring tool about three months ago which included a handle (of course) and a B-10 blade, it had a spring loaded quick release mechanism for changing the blade which was great, it worked fine for a while then I noticed a last week the blade was starting to get loose in the handle and working its way out, well come to find out the whole dang thing was made from PLASTIC, I paid over $25.00 for it thinking I was getting a fairly descent tool, this is what intrigued me to make this tool, they just don’t make things like they use to, even name brand tools are made in china anymore.

I wanted to make this tool with some what of a quick release end on it, so I came up with this threaded retaining cap idea which contains four 1/8” hard steel balls, those balls fit into a radius that’s machined onto the B-10 blade, this is what holds the blade from coming out of the handle and allows the blade to rotate freely, all you do is insert the B-10 blade in from the bottom of the retaining cap and drop four 1/8” hard steel balls in from the top of the retainer, (just don’t drop your balls on the floor J) the balls locate themselves automatically around the radius of the B-10 blade, inside the retaining cap looks like a ball bearing when assembled, simply screw the retaining cap onto the threaded end of the handle and your done, it swivels nice and smooth and you can’t push it in or pull it out, to change the blade you just reverse the process stated above.

The tool was constructed from 4140 steel, hardened and tempered, NO PLASTIC, the handle has a hex milled on it for a nice grip, the handle also has been drilled out to 29/64”Dia. X 3 ½” Dp. and taped ½”-20 for a cap, this also relieves weight in the handle and acts as a storage department for holding extra B-10 blades, this tool works as intended and hopefully my problems with a deburring tool is over.

Below you find some photos of the machined parts and the finished tool

As always thanks for looking

And happy machining

Doug