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Applied Diamond Tools
10666 Gateway Blvd
St. Louis, MO 63132
Direct: 314-736-6205
Toll Free: 800-980-7808
Fax: 636-489-0509
email:
sales@applieddiamondtools.com

Diamond Files

Diamond Files are used for hand sanding and detailing of stones, concrete, glass and other types of materials. They are manufactured by electroplating diamond on to steel blanks using nickel. The smaller the particles, the finer the grit of the file. This is why diamond files are referred to in grits rather like sandpaper. The higher the number, the smaller the grit and the finer the finish. For example a 600 grit diamond file will be much finer than a 220 grit.

The distribution of diamond particles enables the diamond needle file to not only cut in all directions but also produce a much better finish. Therefore diamond needle files can offer a fantastic abrasive for a variety of applications.

Due to the hardness of diamond, diamond files can be used on a variety of materials that other abrasives will not have an impact upon.



Displaying products 1 - 6 of 6 results
Diamond File for Stone 10" Flat #46
List Price: $35.00
Sale Price: $29.95
Diamond File for Stone 10" Flat #46
Wide Flat Diamond File
Diamond File for Stone 10" Half Round #46
List Price: $35.00
Sale Price: $29.95
Diamond File for Stone 10" Half Round #46
Wide and Rounded Diamond File
Diamond File for Stone 10" Round #46
List Price: $35.00
Sale Price: $29.95
Diamond File for Stone 10" Round #46
Round Diamond File
Diamond File for Stone 10" Square #46
List Price: $35.00
Sale Price: $29.95
Diamond File for Stone 10" Square #46
Square Diamond File
Diamond File for Stone 10" Triangle #46
List Price: $35.00
Sale Price: $29.95
Diamond File for Stone 10" Triangle #46
Triangle Diamond File

As you know traditional steel files have teeth rather like a saw blade. The smaller the teeth, the finer the cut of the file, but all these teeth are lined up in the same direction. So this means that with a traditional file it will only cut in one direction like a saw. Even when you have a round or half round file, they still only cut in a forward direction. They don't work sideways or in a circular motion, for example.

In contrast diamond files don't actually have teeth as such, but diamond grit. This gives diamond files the unique property in that they will work in any direction.

How to Use Diamond Files

1. Use the tip of a diamond file for detailed areas such as ring shanks

You can use the fine tiny points of the files to get into tiny areas. As long as you can move the file in any direction, it will cut and it will file for you. This is particularly useful with a large round 600 grit diamond file as it can be rotated inside a hole or outside a ring, and it will cut in 360 degrees.

Great for the inside of ring shanks and also for deep burring. A large half round 220 grit file is also great for the inside of rings and bangles and it has a nice wide flat profile so that can be used on the outside of rings without changing files. A great companion to the 600 round file.

Half round 220 grit large diamond file for the inside and outside of ring shanks

600 grit large triangle diamond file ideal for intricate areas and removing solder

2. Sharpening carbide cutting tools

Over time tungsten carbide cutting tools will dull and it is often easier to have a hand tool abrasive that you can take straight to the cutting tool, rather than having to take a cutting tool to an electric grinding wheel. 600 grit diamond files are the best grade for this application.

3. Enlarging holes

A round diamond needle file can be used for opening up a huge array of holes in hardened surfaces, 600 grit being the most common for most applications. Small screw holes in watches and clocks to holes in jewels and beads can all be opened up with a round diamond file. Choose diamond files that are either 600 or 900 grit for the best results.

4. Removing excess solder

If you solder a post onto the back of an earring, for example, a square 600 grit diamond file will help you get right into that solid joint and clean up both the horizontal and vertical surfaces. It also has a very nice sharp point. A round diamond file can be used for removing excessive solder inside a ring band and the finish is finer than what you would achieve with a traditional ring file.

Squre 600 grit diamond neede file used for removing solder

5. Fitting clock and watch glasses

Sometimes when fitting watch or clock crystals the sizes need to be altered slightly, the use of a 600 grit diamond needle file will produce the required result in minimal time.

6. Refacing clock & watch pallets

Clock and watch pallets are very hard and become burred and mis-shapen over time. The use of a 900 gritfine diamond file can radically change the surface of the pallet for a more efficient movement.

Taylor horology using a 900 grit square diamond needle file

Above image shows Brad Taylor of taylorhorology.com using a 900 grit small square diamond file

7. Shaping precious stones for jewellery

Precious stones can be extremely hard, especially quartz, sapphire and ruby, and when setting stones into jewellery small alterations may be required. No other abrasive will have such an effective impact as a diamond needle file. Fine grades such as the 600 and 900 grit are ideal for making these small adjustments. Try a smallflat 600 grit file, or a small half round 900 grit for superfine finishes.

small half round for shaping cabochons and precious stones

Lucylou designs uses a diamond file to shape and smooth her cabochons, as seen above.

8. Repivoting clock and watches

Removing the burrs and wear from pivots is often difficult due to its hardness, especially in French clocks. The use of a 600 grit diamond needle file can have the pivot running smoothly in no time at all.

9. Bevelling cut crystal glasses and filing glass

We all know it is very easy to chip the rim of your precious crystal glass and due to the cost of replacing one in a set, using a diamond needle file can be far more economical to bevel the lip of the glass. It is essential that a 600 grit diamond file is used and half round shape is by far the most versatile for the contour of the glass.

The above image shows a glass bottle that has been cut, the edges of which are being filed down with a large square 600 grit diamond file.

Small 600 grit files are great for filing the edges of mosaic pieces as well

10. Sharpening household objects

Scissors, penknives, garden tools, kitchen knives, small screwdrivers, guitar and violin strings can all be sharpened to a razor sharp finish in very little time. You can use various sizes of diamond file for this application but a 600 grit is recommended.

11. Cross graining burnishing tools

Over time burnishing tools lose their burnishing ability, only diamond files can re-address the cross grain of a sapphire burnisher or hardened steel burnisher. Opt for the 600 grit for the best results.

12. Sharpening fishing hooks and ice screws for winter climbing

One of the most important tools of an angler has to be his hook and in carp fishing in particular this has to be razor sharp (sticky sharp) The use of a Flat 600 grit diamond needle file is ideal for this due to its size and profile. It is very important that the very hard to find diamond escapement file is used for this operation, this allows dexterous filing all around the hook point.

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