SPTA sanding discs 150mm

The 150mm discs have a hook-and-loop backing, so they’re designed to attach and come off quickly on a compatible random orbital sander.

A six-hole pattern is already punched into each disc. That gives you a practical starting point for sanding tasks where dust-extraction holes need to line up with your sander.

The pack is described as assorted, covering coarse through fine grits. If you prioritise having several grades ready for different stages, that’s useful, if you prefer a set with one clearly specified grit range, the listing details may give you pause.

Getting the most from it

Use a coarser disc for more assertive material removal, then move to finer grades as you work towards a smoother finish. For example, when preparing a wooden surface, you could start with a coarser grade and progress through finer ones rather than expecting one disc to do every stage. The exact result will depend on the material and task, the product details don’t specify a recommended sequence.

The 150mm diameter and six pre-punched holes are the main fit details to compare with your sander. The hook-and-loop backing is intended to make changing discs straightforward, but the hole pattern still needs to match your machine if you rely on dust extraction. The stated materials include aluminium oxide, described as durable and anti-static, and the discs are listed for use on wood, metal, rubber, leather, plastic, stone and glass.

Why it’s worth it

A mixed-grit pack can be more convenient than buying a single grade when a job involves both initial sanding and finer finishing. The product name lists grades from 40# to 2000#, while the package description gives a different selection: 40, 80, 100, 180, 240, 320, 400, 800, 1200 and 2000. That mismatch is a real drawback if you’re choosing the set to fill a specific gap in your workshop. Without clarification, don’t assume either list is a definitive account of what arrives.

The stated pack contents are 100 sheets, with 10 sheets of each grit in the package description. That could suit someone who expects to use abrasives regularly, but it’s less compelling if you only need a small number of discs in one grade. The description also doesn’t give a thickness or durability rating, so there’s no basis here for judging how long a disc will last under a particular workload.

Key takeaways

• 150mm sanding discs with a six-hole pattern and hook-and-loop backing.
• Aluminium oxide is the stated abrasive material, the listed uses span several materials.
• Grit details conflict between the product name and package description, so the exact assortment is uncertain.

It makes sense if you want a range of grades for varied sanding jobs and your sander takes this size and hole layout. It won’t suit you if you need certainty about a particular grit before buying, or if your machine uses a different disc diameter or hole pattern.

When to choose it

Choose this set when having multiple grades to hand matters more than buying a precisely documented selection, and the 150mm, six-hole format matches your equipment. For a one-off job with a known finish requirement, a pack listing only the exact grade you need may be the more dependable approach. The supplied information is broad on intended materials but doesn’t establish performance on any one of them, so base your decision on the stated format and the grit range you can confirm.