Sharpen Hand Instruments with Diamond Playing cards

Sharpen hand instruments with three cheap diamond playing cards

Currently I’ve been doing 99% of my sharpening with a cheap set of three diamond “bank cards.” I maintain the blade in a single hand, and with the cardboard within the different I press the cardboard towards the blade and rotate it. You’ll be able to study to do that freehand, however I like to recommend putting a 11⁄22-in.-dia. rare-earth magnet on the again of the cardboard.

The magnet makes it a lot simpler to maintain the cardboard flat on the tip and heel of the bevel, particularly if you find yourself first studying tips on how to do it. Placing the magnet on the cardboard additionally makes it simpler to keep away from rounding the again—when you have to take away the tiny burr that builds up there.

A set of 2-in. by 311⁄44-in. playing cards (DMT Dia-Sharp Diamond Sharpening Stone Credit score Playing cards) is simply $34 on Amazon, and the grits are roughly 400, 800, and 2000.

I hollow-grind my bevels on an 8-in., 180-grit CBN wheel, so the diamond playing cards relaxation solely on the tip and heel of the bevel, leaving them solely a small quantity of metallic to take away. After grinding I work my approach by way of all three playing cards, however solely the best one is critical for subsequent honing.

My benchmark for sharpness is whether or not the blade will catch a fingernail and pare end-grain pine—and these little playing cards get my chisels there rapidly. In addition they work nicely on airplane blades, leaving them sharp sufficient for nearly all of my hand-planing duties. If I’m planing one thing actually powerful, I nonetheless escape my 8000-grit waterstone, nevertheless it’s been some time since I did that.

-—SCOTT SONNENBERG, Newton, Mass.

Advantageous Woodworking Beneficial Merchandise

Honing Compound

This honing compound is nice for loading right into a buffing wheel and sharpening an assortment of metals.

Rockler Silicone Sharpening Stone Tray

At 6 in. large, with loads of size for normal waterstones, they’ve grippy dimples that maintain the stones secure and degree, plus large channels throughout to catch the water. In addition they lock collectively, facet by facet, so I can have all of my stones obtainable on the identical time.