Sheets
Pro
Grit · 120
Norton 3X Sheet Sandpaper, 120 Grit (20-pack)
120. The grit that decides whether the job goes well or badly.
FEPA P-grade · Converted
P120 in CAMI grit and microns.
P120 paper averages about 125 µm on the FEPA table. On the US CAMI scale that is about CAMI 120. A sheet printed plain "120" is about 115 µm, close enough that the P barely matters at this grade.
- Avg. particle
- ~125 µm
- FEPA table
- Nearest CAMI
- 120
- by particle size
- Plain "120"
- ~115 µm
- CAMI 120 ≈ P120
- 3M Trizact
- A160
- 3M’s own pairing
What P120 is for
The everyday middle. General smoothing and most paint prep.
- 3M Trizact A160 / P120Blending welds, heavy metal finishing.
- Norton 3X P120The everyday middle; most paint prep stops here.Check price →
- Festool Granat P120General smoothing; paint prep.Check price →
- Mirka Abranet P120Drywall mud and general smoothing.Check price →
Either side of P120
The neighborhood.
At this grade
Paper we link at P120.
Discs
Pro
Grit · 120
Festool Granat 5-Inch Disc, 120 Grit (25-pack)
Standard prep. German pyramid grain. Everything after starts here.
Discs
Pro
Grit · 120
Mirka ABRANET 5-Inch Mesh Disc, 120 Grit (50-pack)
The everyday prep grit. Open mesh, Finnish abrasive, no compromise.
Questions people ask
What is P120 in CAMI grit?
About 120. P120 averages 125 microns on the FEPA table and CAMI 120 averages 115, so the scratch is close to the same.
How many microns is P120 sandpaper?
About 125 microns average particle diameter, per the FEPA P-grade table (ISO 6344).
Is P120 the same as 120 grit?
Close enough to treat as the same. P120 averages 125 microns and CAMI 120 (a bare "120" on US paper) averages 115.
What Trizact grade is P120?
3M pairs P120 with Trizact A160 in its Trizact brochure. Don't read the A-number as microns: 3M's own pairings put A45 at P400, which averages 35 microns on the FEPA table.
Convert any other grade, from CAMI, microns or a Trizact A-number, on the grit converter.
Sizes are average particle diameters from the published FEPA (ISO 6344) and CAMI (ANSI B74.12/B74.18) tables. "Nearest" means within 10%; otherwise both neighbors are shown. Trizact pairings are 3M's own. Sources: Wikipedia, "Sandpaper" grit table (rev. 1127917881); Klingspor coated abrasives grit chart; 3M Trizact A-to-P table.