Skil 20-Piece Mixed Triangle Sanding Paper Kit

A practical sanding kit that does the basics well

I’ve been using the Skil triangle sanding kit across a handful of small projects—refinishing a pine shelf, scuff-sanding a painted cabinet door, knocking down a drywall patch, and cleaning up a small fiberglass repair. It’s a straightforward set of 5-inch, mouse-detail triangles with hook-and-loop backs and a matched hole pattern for dust extraction. There’s nothing flashy here, and that’s kind of the point: they attach securely, cut predictably, and the grit selection covers most day-to-day tasks without forcing me to dig for extras.

What you get and how it fits

The kit includes 20 sheets total: five each of 60, 80, 120, and 240 grits. The triangular shape reaches into corners and along edges where round pads simply can’t, and the size matches Skil’s multi sanders I used, seating flush with no overhang. Hook-and-loop backing is consistent across the pack—no odd ducks with weak adhesion—and the perforations align with the sander’s pad holes, which is key for dust pickup.

Compatibility is officially noted for Skil’s multi sanders (SR232301, SR250801, SR6607B). Fit and hole alignment were spot-on with my Skil unit. If you’re running a non-Skil mouse sander, the shape might fit, but the hole pattern is tailored to Skil pads; misalignment can reduce dust extraction, so I’d stick to the intended pairings.

Setup and swap speed

Hook-and-loop makes changeovers quick, and that matters when you’re stepping through grits. I could tear off a worn sheet and pop on the next grit in seconds without fiddling with clips or alignment pins. The backing kept its bite over repeated swaps, and I didn’t notice pad fuzzing or premature wear on the sander’s interface.

A small tip: seat the sheet lightly, wiggle it to feel for hole alignment, then press it down fully. That keeps the dust ports unobstructed and improves collection.

Cutting performance by grit

• 60 grit: For aggressive stock removal—leveling uneven edges, knocking down dried wood filler, or cutting through stubborn finish—60 grit got me there quickly. On pine, it removes material fast; keep the pad moving to avoid gouges.
• 80 grit: A good follow-up to erase 60-grit scratches and continue shaping. It’s also a reasonable starting point for painted surfaces if you’re just scuffing for adhesion rather than stripping to bare wood.
• 120 grit: The workhorse for smoothing surfaces before primer or a first coat of finish. It bridges the gap nicely after 80 and leaves a surface ready for most film finishes on softwoods.
• 240 grit: For fine prep, particularly before waterborne topcoats or between coats of finish. On bare hardwoods, I’d sometimes prefer a 180 or 220 step before 240, but in many cases 120-to-240 works with light pressure and a clean sheet.

Across wood, the aluminum oxide abrasive leaves a consistent scratch pattern. On hardwoods like oak, the 60 and 80 grit carry the load; by the time I reached 120 and 240, the surface looked even and ready for finish. On painted cabinet doors, 120 grit had the right balance—enough cut to dull gloss without chewing through corners. For drywall patches, 240 grit feathered the edges cleanly; I’d avoid the coarser sheets on compound unless you’re correcting a high spot.

Metal and fiberglass are listed as intended materials, and the sheets do fine for light tasks—deburring, smoothing epoxy or resin patches, or knocking back primer overspray. For heavy metal removal, aluminum oxide will wear faster than ceramic or zirconia; this kit is better suited to light shaping and prep than aggressive grinding.

Dust control and cleanliness

With the holes aligned and a vacuum attached to the sander, dust collection was solid. It won’t render your workspace spotless, but it meaningfully reduces airborne fines and keeps the sheet from loading as quickly. On paint and drywall, any paper will tend to clog, but a quick tap against a bench or a blast of compressed air revived the sheets between passes. I found the 240 grit particularly sensitive to loading on latex paint; work at moderate pressure and let extraction do its job.

If you’re sanding without a vacuum, expect more surface dust and quicker clogging, especially at finer grits. The kit’s hole pattern is only as effective as the airflow behind it.

Durability and wear

Longevity is about what I expect for quality aluminum oxide papers. The 60 and 80 grit sheets held up through several square feet of pine and a round of leveling on a small tabletop. Corners—the stressed part of any triangle sheet—will show wear first if you lean on them; lighten up, and they last longer. The 120 and 240 grit sheets survived multiple panels of scuff-sanding, with gradual dulling rather than sudden failure.

The hook-and-loop backing stayed intact even when I warmed the paper with continuous use. Still, heat is the enemy: if the sheet feels hot to the touch, take a moment, clear dust, and reduce pressure. That preserves both abrasive and backing.

Grit progression and workflow

The grit set covers a sensible ladder for most home and shop tasks. The notable gap is the jump from 120 to 240. On some hardwood finishing jobs, I prefer a 150/180 step to minimize time spent removing 120 scratches with an extra-fine sheet. The kit’s 240 handled the transition with light pressure and a slow pass, but if you’re aiming for a furniture-grade surface on dense hardwood, you may want to supplement with a 150 or 180 triangle from another pack.

For paint prep, the included grits are spot-on: 120 to scuff, 240 to smooth between coats. For repair work (putty, filler, resin), starting at 80 or 120 and finishing at 240 works well.

Control, edges, and tight spots

The mouse-detail shape is the reason to use this kit. I could track into inside corners, along face-frame edges, and around window trim without switching to a hand block. The tips are particularly useful for sanding right up to caulk lines or molding profiles where a round pad would skip. To protect the tips, avoid hanging the sander off an edge with concentrated pressure; instead, overlap passes and keep the pad fully supported.

Where it shines and where it falls short

Strengths:
- Reliable fit and adhesion on compatible Skil sanders
- Predictable, even scratch pattern across wood and painted surfaces
- Useful grit spread for general prep, repair, and finishing
- Effective dust extraction when paired with a vacuum and proper alignment

Limitations:
- No 150/180 grit; the 120-to-240 jump can be a stretch for hardwood finishing
- Aluminum oxide wears faster on heavy metal work than ceramic alternatives
- Hole pattern is tuned for Skil pads; dust pickup may suffer on other brands

None of these are deal-breakers for the typical homeowner or DIYer, but they’re worth knowing so you can plan your workflow or pick up a supplemental grit if needed.

Tips for best results

• Mark your surface with a pencil grid; it helps verify that you’ve removed the previous grit’s scratches before moving on.
• Clean the sheet often. A soft brush or compressed air keeps the abrasive cutting longer.
• Use light to moderate pressure. Let the sander and abrasive do the work—too much pressure polishes dust into the sheet and shortens its life.
• Keep the pad moving, especially with coarse grits, to avoid grooves.
• Align the holes carefully. It’s a small habit that pays off in better dust control and longer sheet life.

Recommendation

I recommend the Skil triangle sanding kit for owners of compatible Skil multi sanders who need a dependable, all-purpose set of detail sanding sheets. The fit and hole alignment are correct, the hook-and-loop backing is consistent, and the aluminum oxide abrasive delivers a clean, predictable cut across wood, paint, drywall, and light metal or fiberglass tasks. The included grits cover most prep and finishing workflows, and dust extraction is effective when used as intended.

If you’re tackling heavy metal removal or chasing a furniture-grade finish on dense hardwoods, you may want to supplement with ceramic papers or add an intermediate 150/180 grit to refine the scratch pattern. For everything else—from trim touch-ups to cabinet scuff-sanding and small repairs—this kit hits the mark and keeps the work moving with minimal fuss.