Dots vs. bars: the core difference
Bars have sharp corners, and every corner is a cutting edge. That means a more aggressive cut and faster material removal — ideal when you need to move through a job quickly and finish quality underneath isn't the priority.
Dots are rounded, with fewer sharp edges. That translates to a gentler cut and a noticeably smoother scratch pattern left in the concrete.
Prepping for solid color or flake epoxy floors
If your next step is a solid color or flake epoxy floor coating, the pattern underneath won't show — the topcoat covers it. Dots or bars both get the job done here, so pick based on speed and how the bit feels on your equipment.
Grind and clear or polishing? Use dots.
If you're doing a grind-and-clear or a full concrete polishing job, stick with dots. Polished and clear-coated floors show every scratch, so starting with the smoother dot pattern saves you from extra work correcting deeper marks left by bars later in your grit sequence.
Quick reference
- Solid color or flake epoxy floor: dots or bars — your call
- Grind and clear or polish: dots, every time
Get the right bits for the job
We test every grinding bit pattern in the field before it ever ships, so if you're still not sure which one your project calls for, that's exactly what we're here for. Browse our full lineup of diamond grinding bits and reach out if you want a second opinion before you order. Good luck out there.
