Indasa 5" Rhynogrip Red Line 5-Hole Vacuum Sanding Discs (520 Series) are premium aluminum-oxide hook & loop discs with a 5-hole dust-extraction pattern for clean, dust-free sanding on a vacuum-ready DA sander. Red Line delivers Indasa's highest cut rate and longest life. Available 40–2000 grit.
Why pros choose Indasa Red Line
5-hole dust extraction for a cleaner panel, better visibility and longer disc life
High initial cut with anti-clog lubricant coating
Flexible backing for curves and contours
Uniform scratch pattern and anti-static, dust-repellent build
Nylon hook & loop runs cooler than PSA
Best applications
Body filler, primer, paint and clearcoat prep
Blending and refinishing on contoured panels
Fiberglass, gelcoat, solid surfaces and metals
Grit selection guide
40–80: heavy stock removal & filler leveling
120–180: filler shaping & primer prep
220–400: final prep before topcoat
500–2000: denibbing & fine finishing before polishing
Compares to
A premium alternative to 3M Hookit Gold & Purple, Mirka Gold & Q.Silver, and Norton A275 / A975 Dry Ice.
Grit range: 40 to 2000 | Series: Indasa 520 Series
Frequently asked questions
Which backup pad do I need? A 5" 5-hole hook & loop backup pad so the holes line up for extraction. Shop Grip Backup Pads.
Do I need a vacuum sander? For dust-free results, yes — pair with a vacuum-ready sander and extractor. They still work without, but holes are most effective with extraction.
Red Line vs White Line? Red Line is the premium, longest-life, highest-cut line; White Line is the everyday line.
