SATC 115mm flap discs pack 20

Flap sanding and grinding discs can make day to day metal and wood work feel faster, especially when you are spending less time swapping consumables. This SATC 115mm flap disc pack is designed to tackle smoothing, blending and grinding with a Type 27 flap shape, so you can keep moving on the job. With multiple grits in one set, it supports a practical workflow from initial abrasion to finer finishing.

The key advantage here is the build and structure. The flaps are made from high strength polyester, with premium aluminium oxide grains and a multilayered fiberglass backing plate, which helps the discs hold up when used steadily. It is also described as vibration free, with the flaps evenly distributed and concentrically placed around the arbor hole and tightly tied to the backing plate for a smoother grinding experience. 😊

The essentials

These SATC flap discs are a convenient multi grit pack, with 20 grinding discs covering 40, 60, 80 and 120 grit. Each grit is supplied as 5 discs, which makes it easier to match the abrasiveness to the task rather than buying separate packs. The manufacturer also positions Type 27 flap discs as better for smoothing and blending surfaces, which fits well with the kind of work where you want controlled material removal and a more even finish.

For day to day use, having a mix of grits can reduce back and forth between stages. Use a coarser grit to knock back weld lines, rust spots or rough edges, then move through finer grits to improve surface consistency. The set format also helps when you are switching between metal and wood workpieces, because you already have an appropriate option in the box. 🔧

There is a specific usage note that matters for performance. The discs are best used at a 0 to 15 degree angle, which supports more effective contact and better control over the blend. It is also sensible to keep safety gear on hand, because any abrasive action can throw off dust and particles.

Pros

What stands out from the product details is durability, comfort during grinding, and practical completeness of the kit. The flap material is high strength polyester and the grains are described as premium aluminium oxide, paired with a robust multilayered fiberglass backing plate to support longer working sessions. The pack is also presented as requiring less time for changing discs, which can be a real benefit when you are in the middle of a work flow.

Another strength is the construction approach aimed at smoother running. The vibration free feature is described as even distribution and concentrically placed flaps around the arbor hole, tied tightly to the backing plate, which can make sustained grinding feel steadier. That can be especially helpful when you are blending surfaces and trying to keep the finish consistent across a wider area.

Tech specs

• Type: Type 27 flap discs
• Diameter: 115 mm
• Pack size: 20 discs
• Grit range: 40, 60, 80, 120
• Grit quantity: 5 discs per grit
• Recommended angle: 0 to 15 degrees
• Backing material: multilayered fiberglass backing plate

What you’ll notice day to day

If you are doing sanding like grinding on metal, the sequence across 40 to 120 grit helps you go from rough shaping to smoother blending without changing brands or hunting for the right disc mid project. If you are working on wood as well, you can use the finer grits to reduce the risk of over aggressive abrasion while still refreshing edges and surfaces.

It is worth noting the contaminant claim and the safety reminder provided. The manufacturer states the discs contain no more than 0.1% iron, sulphur and chlorine, which is positioned as beneficial for health and the environment. At the same time, you should wear eye protection, keep all guards in place, and choose the appropriate grit and grinder setting when you grind or sand. ✅