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13.11.2020Most hook-and-loop sanding discs look alike except for their color, so how can you tell which ones give the best value? You can't unless you test 'em, so that's what we did with 15 popular brands. Here's what we learned. To quantify the aggressiveness and durability of the discs, we sanded a single poplar board with or grit abrasive depending on what the maker offers for 15 minutes with each fine woodworking editorial staff price, weighing fine woodworking editorial staff price board after every minute.
A 1-pound weight affixed atop the sander provided consistent downward pressure. Then, we repeated fine woodworking editorial staff price test with two more discs of each brand and averaged the results.
That's editorkal than 11 hours of sanding for those of you keeping track at home. This chart shows the results of that test.
In the first minute, Craftsman Professional, Klingspor Stearate, Norton 3X, and Bosch came strong out pprice the gate when the abrasives were factory-sharp. Fije by the end of the first five minutes, Bosch had slipped to the middle of the pack. In the second five-minute interval, all of the discs removed less wood than in the first five minutes as they began to dull or load with dust.
Again, Klingspor Stearate's performance fell off the least—only 11 percent. And during the final five minutes, most discs leveled off, removing percent less than in the middle five minutes. Bottom line: The top discs abraded more wood in their first five minutes than the Ace Hardware discs did in But is an aggressive, durable disc a good value? That depends on the price of the disc.
Discs sold in packages of 15 or fewer discs tend to have woldworking highest cost-per-gram. Starting with or grit discs, we sanded pine boards with equal strokes through each grit up to or for brands without grit discsthen applied stain to each sample to show any scratching left behind.
Most of the discs left only minor scratching visible to the naked eye after the highest grit, although Gator's Ultra Power left more prominent scratches. See photo. We were pleased to see that a handful of grit discs—Bosch, Gator Power, Makita, Mirka Abranet, and Norton 3X and MultiAir—delivered a near scratch-free finish that would be acceptable to all but the fussiest of woodworkers.
These discs save you time by not having to sand to a higher grit. Dust collection. We observed better-than-typical dust collection from two distinctly designed discs, shown at right: Mirka's Abranet and Norton's MultiAir. These holes-everywhere configurations allow fine woodworking editorial staff price sanding editrial to migrate to the sander's vacuum holes through the hook-and-loop backing. We could see the dust path on the back of the discs after use. If pricw particularly sensitive to dust, these discs may be worth the extra money.
Grit readability. If you forget which disc grit is on the sander, you should be able to peel it back and read the grit markings on the back. On the Craftsman Professional and both Norton discs, dark print against a dark blue background photo made reading the disc label a challenge. Discs with light-colored backs read easier, prive dirty, than the black-on-blue printing found fine woodworking editorial staff price a few of the discs. Klingspor's Stearate discs, with the most aggressive and durable abrasives in the test and the lowest cost per disc, proved the perfect storm of material removal.
But several other discs finished finer. So, for our money, we'd use Klingspor Stearate fine woodworking editorial staff price initial sanding and then switch to one of the disc brands that left no visible scratches at grit: Bosch, Gator Power, Makita, Mirka Abranet, or Norton 3X or MultiAir.
If you want to stick with one brand, Makita, Mirka Abranet, and Norton 3X do the job admirably from start to finish, but cost about twice as much per gram removed as Klingspor Stearate. You need to cut a big arc or wheel out of a sheet of plywood, but fine woodworking editorial staff price know that a handheld jigsaw Skip to main content. Tool review: Sanding Discs. We reduced 2 cubic feet of poplar to dust -- literally -- to find the top-performing abrasives for your random-orbit sander.
The best abrasives start fast, then last and last Most hook-and-loop sanding discs look alike except for their color, so how can you tell which ones give the best value? Facebook Pinterest Twitter Text. Printer-friendly version. Read more about Sanding woodworking Abrasives. What do sandpaper grades mean?
What's the best way to sand handle tapers? Can I run finished wood through my planer? The Nitty-Gritty of Sandpaper. For more related content, subscribe to our newsletter! What's the best way to cut acrylics and plastics?
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