On this page
- The Importance of a Hand Sanded Finish
- A Budget-Friendly Sanding Vise Setup
- Essential Tools and Materials for Hand Sanding
- The Crucial 220 Grit Phase
- Etching Your Maker's Mark
- Achieving the Final Satin Finish with 400 Grit
- Protecting Your Finished Blade
- Supplies mentioned
- Watch this lesson
If you have been following the Bladesmithing 101 series, your blade should be ground, heat-treated, and ready for its final surface finish. That step is hand sanding—and if you ask experienced makers what they enjoy least, many will name it first. It is slow, repetitive work. It is also non-negotiable: without it, the blade never looks truly finished.
This lesson covers a budget-friendly vise setup, the abrasives and accessories worth keeping on the bench, and a grit progression that produces a clean 400-grit satin suitable for everyday knives and ABS Journeyman practice.
The Importance of a Hand Sanded Finish
Finished knives take many paths: blackened steel, stonewash, mirror polish, and more. Nearly every specialized finish still begins with careful hand sanding. Even if your end goal is something more dramatic, you need flat, scratch-free flats as the foundation.
A straight 400-grit satin is a strong default. It teaches the fundamentals you will reuse on every other finish, and it meets the American Bladesmith Society (ABS) Journeyman requirement for a 400-grit hand-sanded blade. The techniques below are the ones I rely on for consistent results on shop knives and test pieces alike.
A Budget-Friendly Sanding Vise Setup
Many shops use dedicated knife-making vises. They are excellent tools—and worth building or buying when the budget allows—but a purpose-built vise can run several hundred dollars. Until then, a standard bench vise and a scrap length of two-by-four work well.
The goal is simple: hold the blade rigid while you apply firm, even pressure with a sanding block. Two setups cover most blades.
- Vertical mount: Clamp the two-by-four upright in the vise. Drive two wood screws through the wood into the tang area (not through the blade face) to hold the knife flat against the lumber. You can let the blade extend farther from the wood for access, or seat it higher so the steel is fully backed—helpful on thin blades that flex under pressure.
- Horizontal mount: Turn the two-by-four on its side if your vise jaws allow it, then clamp the blade to the wood with C-clamps. A larger vise makes this layout easy on longer knives.
Either method beats trying to sand while holding the knife in your bare hand. You gain control, speed, and safety. The edge may not be sharpened yet, but it is still sharp enough to cut you during aggressive strokes—stay aware of edge orientation at all times.
Essential Tools and Materials for Hand Sanding
Gather these before you start the 220-grit phase.
- Sanding backer: Fingers alone cannot produce flat, crisp lines. Wrap paper around a rigid block—a half-inch square steel bar is a simple, effective choice—or use a commercial sanding block. At higher grits, a slightly softer block can help blend the final passes without leaving hard lines.
- Lubricant: Spray the blade with Windex (or experiment with WD-40 if you prefer). The fluid keeps metal dust from loading the paper immediately, which stretches the life of each piece of abrasive and saves money over a long session.
- 220 grit paper: Most of your time sits here, removing belt-grinder scratches. A bulk roll of 220 is economical because you will use a lot of it.
- 400 grit and finer sheets: For 400 grit and above, switch to quality wet/dry sheet paper. I like Rhino-Wet, and 6×9 inch hand pads in multiple grits are a convenient alternative when you want pre-cut sheets. This build stops at 400 grit, which is the ABS test standard and looks excellent on a working knife. Damascus and show pieces often continue through 600, 800, 1500, and beyond; the finer you polish before an acid etch on pattern-welded steel, the sharper the pattern reads afterward.
- Scotch-Brite pads: Abrasive pads from the hardware store are useful for softening the surface between grit steps and for lifting light handling scratches without starting over.
The Crucial 220 Grit Phase
After bevel grinding, the flats still look rough. Cut roughly ten inches from your 220 roll, wrap it tightly around the steel bar, and begin.
Dry sanding loads paper within seconds. Wet the steel generously with Windex, then sand with steady pressure along the flat. When one face of the paper fills with dust, rotate to a clean section of the wrap and continue.
Pay close attention to these areas:
- Plunge lines: Deep scratches hide in the corner where the bevel meets the ricasso. This is the most commonly skipped spot on beginner blades.
- Choil and handle junction: Sand the steel that will remain visible forward of the scales.
- Tang transition: Know where your handle scales will end. Sanding to a random line—and then mounting scales shorter than that line—leaves a band of coarse scratches you cannot easily fix later.
Progress is gradual. Fifteen minutes on one side may still not be enough to advance. Moving to the next grit while vertical belt marks remain is the fastest way to a blade that looks unfinished under normal light.
Wipe the blade periodically and inspect it. You are done with 220 only when every scratch from the grinder runs in the same direction as your sanding strokes and none of the original belt lines remain. The surface will still feel coarse, but the hard work of scratch removal is complete. Repeat on the second side before you etch or step up in grit.
Etching Your Maker's Mark
Pause after both sides reach a uniform 220-grit finish. That is the right moment to electro-etch your maker's mark—before the final 400-grit passes that define the satin.
Photographic stencils and etching supplies from IMG produce crisp logos when used with a proper electro-etch setup. Current passes through the steel wherever the stencil is open, removing metal in the logo shape.
Tape the stencil down with electrical tape so it cannot shift and so the surrounding steel is masked from stray current. Apply short bursts—about three seconds per pass—rather than holding the wand down continuously. Heat builds quickly and can burn through the stencil.
Inspect the etch under varied lighting. If your fingernail catches in the recessed lines, the depth is usually sufficient; if the mark feels smooth, one or two more brief passes may be needed.
Remove the stencil and neutralize the salt-based etching solution immediately. Windex works well as a neutralizer on the bench; follow with alcohol on the etched area before the next finishing step.
To darken the logo, apply a small amount of cold gun bluing inside the etch. Brownells Formula 44/40 Instant Gun Blue is a reliable choice. Let it react for a minute or two. Excess bluing on the surrounding flats is expected—it sands off during the 400-grit phase while the recessed mark stays dark and legible.
Achieving the Final Satin Finish with 400 Grit
With the mark etched and blued, move to 400 grit. Cut a strip about three and a half inches wide, wrap your block, and sand with a lighter touch than you used at 220.
If stubborn scratches remain after 220, an optional pass with 320-grit adhesive-backed sandpaper on your block can bridge the gap before 400. Not every blade needs it, but sticky-backed sheets are handy because they stay wrapped on the bar.
Aggressive 220 often leaves a slight swirl pattern. Because 400 is the final abrasive on this knife, sand in one consistent direction along the length of the blade—no crossing angles unless you plan to continue to higher grits. Some makers alternate direction between grits to verify that the previous stage is complete; when you stop at 400, keeping strokes parallel to the edge produces the cleanest satin.
Work the plunge lines carefully. The corner of the sanding block can reach into the groove when the flat of the block cannot. Give that area extra time; it is where leftover 220 scratches show first.
As you sand, the bluing wipes off the highs and the maker's mark sharpens. The 400 stage moves faster than 220, but inspection should still be frequent. You are finished when plunge lines are clean, the logo reads clearly, and the flats show an even satin sheen without visible 220 scratches.
Sand the spine at a slight angle to match any rounding you ground earlier. Leave the tang flats where the handle will sit rough for now—handle fitting and glue-up will scratch that zone, and you will clean it during the handle lesson.
Protecting Your Finished Blade
A fresh satin finish rusts quickly in a humid shop. If handles are not going on immediately, protect the bare steel.
George's Clubhouse wax is one option: a thin beeswax film across the blade buys time until the next step. Apply sparingly—a little goes a long way.
If you want more polish than 400 grit satin, continue the same progression you use at the grinder: 600, then 800, and so on, never skipping a grit until the previous scratches are gone. The rule does not change on the bench.
Supplies mentioned
Products referenced in this lesson and in the video on YouTube:
- Brownells Formula 44/40 Instant Gun Blue — darkens the etched maker's mark
- ABN adhesive sticky-back 320-grit sandpaper — optional step between 220 and 400
- Tonmp 6×9 inch hand pads (15-pack) — wet/dry sheets for 400 grit and above
- IMG photographic stencils and etching accessories
For the full build-along series, see the Bladesmithing 101 playlist on YouTube.
That completes hand sanding for this build. The next lesson in the series covers fitting and attaching handles, followed by sharpening the edge.
If you have questions about the tools or techniques here, reach out through the contact form.
To follow along with the full series—including this lesson on video—see the Bladesmithing 101 playlist on YouTube.
