3M Micro Abrasive Film

Joined
Jan 12, 2005
Messages
5,874
Got spoiled using these films for finishing edges on my Edgepro Apex. They really work. So much so that I've used my supply and want to reup with more choices in grit. I want three grits: 1200, 6000 and 12000 (15, 1 and .3 microns)

Who carries .3 Aluminum Oxide - PSA, similar to a 12000 grit waterstone? "Tools For Woodworking" website says they are out of stock.http://www.toolsforworkingwood.com/indextool.mvc?prodid=ST-MAF.XX

Thank you kindly.

All the best,

oregon
 
Yeah, but that's at a huge price increase to get the 0.1 micron diamond sheets.

Of course, it would be nice to get away from the coarse edges left by the 0.3 micron AO sheets.
 
Thanks a million yuzuha. Just what I wanted. May you live for one thousand years.

Once my order arrives I will have the tools to polish edges to within inches of their lives. :D

Overdoing it at this low level of abrasiveness? I certainly hope so.

Love this forum.

All the best,

oregon
 
G'day,
I've just gone to a paper wheel loaded with extra fine polishing compound. It leaves the edge "glossy" and very durable. One or two strokes on a leather strop and it easily takes off finger-print ridges and leaves the valleys.
Greg
 
Heads up.

I online ordered 5 sheets each, 8 1/2" x 11" sticky back, of three different grades of abrasive paper from R. S. Hughes. 12 microns, 1 microns and .3 microns for final blade polishing. The paper cost $16.60. Not bad. I can cut quite a few pieces to fit the blank stones for the EdgePro Apex.

However, and unfortunately, each grade of paper shipped from a different location (to my complete surprise) Minnesota, California and Oregon. Shipping comes to $32.72. Fifteen sheets of paper for $49.32.:barf: Shipping is not figured until the item(s) ship.

This is a good reason, in order to verify shipping costs and points of origin, to order over the phone and not online. First time I've run into such practices.

Sometimes you eat the bear and, well, sometimes the bear eats you.

Best,

oregon
 
oregon,
Are you not using the waterstones in your EdgePro?
I ask because I'm interested in the EdgePro for holding the angle but don't want the hassle of waterstones. How do you use the paper?
Thanks,
Greg
 
You bet I use the stones, attached to the aluminum bars. Put down a towel, rinse off the damp stones as metal accumulates with the dropper bottle, and work it. The water helps keep particles out of the air and out of your lungs in addition to keeping the stones cutting. I start off with 180 grit until the edge is sharp and the profile is satisfactory, then 320 and finish with the 600 grit stone.

Then I use the tape on a blank bar. It takes the place of a strop for that razor's edge. Since I'm set up with the EdgePro anyway the process flows easily to the tape.

I sharpened about 20 knives, all grades of steels, over the Thanksgiving holiday. The consternation of the relatives was complete. None had seen anything like the mirror polished razor edge I was able to put on their cutlery.

Never knew about the tapes until I ran into Bronk, a great guy, at Blade West and bot 1,000 and 3,000 grit, pre-cut to fit, sticky back strips on his say so. I am astonished at what they do to polish the edge while creating the razor edge. Beautiful and functional results. Very satisfying finish to the sharpening process.

You should give using just the paper a try. Perhaps start out with the diamond grit to create your desired profile and create a bur and then on to finer, less expensive, grits to finish. Please let me know your results.

Best,

oregon
 
It looks like I'll be asking for an Apex for Christmas.

I'd considered sharpening by hand but I'm just not that great at holding the edge. I can sharpen well enough for in-the-field duty but I have never achieved that razor's edge.

Does using a mechanical device to set a consistent edge improve the process, especially in the kitchen, and make it easier to keep them sharp?
 
The EdgePro Apex makes my sharpening results satisfying. I use it to reprofile and sharpen mostly kitchen knives. When the kitchen cutlery is not profoundly dull I use a large steel to touch up the edges.

With the Apex I am able to keep from scratching and defacing the good cutlery. Used properly, you do not take too much metal in the process and thereby extend the life of the knife. I count the strokes applied with the stones and abrasive paper on each side of the blade. So I can give equal treatment to both sides of the edge. This way I approach equal angles on both sides. It is work. Tougher steels make for more work and greater satisfaction in my opinion.

By taking the Apex up a notch, toward the end of the sharpening process, I can put a micro bevel on the edge which I think is useful in reducing drag during slicing. That is how accurate the results of this sharpener can be.

However, you hold the knife in place on the sharpening platform. So, your strength, to some extent, keeps the sharpening angle consistent. Bronk demonstrated his sharpening techniques several times to me in person with the Apex that I bot from him. This helps. His sharpening pkg. comes with three stones and his book on sharpening technique. Were I wealthier, I might consider buying the professional model (to keep the rig better fixed in place) and not the suction cup platform (which can move or lose suction) for the Edgepro.

I polished some edges with the 3M paper last night. If you draw it into the edge you run the risk of carving off the paper from the blank. It is recommended to draw one way from the spine of the blade toward the edge. Even doing it this way can produce gouges, reducing its effectiveness, in the paper when you get on the point of the blade. Using the stones I draw away and toward the edge so the work goes faster. This may hamper your idea of using just paper, and not the stones, to sharpen.

Best,

oregon
 
Are waterstones easy to work with? I've never used them before but the name conjures images of puddles of water all over the workbench and me standing with a garden hose in my hand.
 
Sharpening with damp stones is not the water sport you imagine.:)

I work at home on my Steelcase desk with a small towel for rotating the different grit stones and another under the work area to absorb the few drips of runoff when I clear the loaded stone with the drip bottle provided. The desk is in my office and shows no sign of damage yet. A paper towel cleans up.

At the folks I worked on a lunch counter facing their kitchen. Same towels and minor dampness. Clean up is easy. Nobody, even my Mother-in-law, complained in the least about any mess in their fine home. Her husband even brought me dirt encrusted garden knives, along with every piece of cutlery in the house, from the garage to sharpen. I cleaned off the dirt first. Weeds are now in trouble.

People are facinated when they see the sharpener in use and want to talk to you about it while you are counting and concentrating using both hands at once with force on a sharp edge. Most people, I guess, are unable to sharpen anything by hand work and when they see it done with intent they are seeing something foreign, perhaps for the first time.

The pleasure my Father-in-law took from my work on his father's three Marbles hunting knives was very satisfying to me. They consisted of two skinners and a USMC tactical all with leather sheaths. I cleaned and polished the handles and blades. Then I restored the edges and mirror polished the new razor edges. He saddle soaped the sheaths. They had been out in the garage for decades. When I left, they were next to his chair, and he asked me not to move them as he wanted to enjoy them.

I don't bother to wear an apron or other protective gear. However, my dress is usually casual. I've never even put a stain on my clothing.

Best,

oregon
 
oregon,

Thanks for all of the information. I'm going to order my Apex tomorrow (although it's for Christmas so I won't get to use it for a while.) We'll be at my in-laws for the holidays so maybe I'll dress up their knives - which could truly use some attention.

Again, thanks.

Greg
 
You are most welcome. It is my pleasure.

Outstanding Christmas gift. I hope you enjoy it and that it meets your expectations. Happy Holidays.

All the best,

oregon
 
Nice to see someone else who really likes their Edgepro. It has opened up a whole new world for me!
 
On line Canadian Suppliers for 1, 0.5, 0.3 micron 8.5 x 11 PSA 3M ??

I can get US shipped to my daughter in Oregon who then forwards on to me but this is a roundabout way of doing things and doubles the time. And yeah a sudden burst of after Christmas sharpening has diminished my supply.

Why oh why do people wait until after christmas dinner and they have mangled the turkey or goose with the DULL carving knife then want it sharpened right now. I actually had 2 calls christmas day to sharpen knives. One was a new gift but the other was just "well I had it loose in the drawer and it's so dull it won't cut butter." Since christmas I've gotten 17 craving knives and other kitchen knives to sharpen.
 
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