≥ 15 - ≤ 25mm
M2 Ø18 mm silver steel disc, 1.5 mm width, with roller
Disc styli are designed to inspect undercuts and grooves within bores which may be inaccessible to star styli. A range of disc styli offers a radius end roller to enable groove width measurement. Silver steel tips are heat treated and precision ground to a high tolerance.
| Disc material | Silver steel |
| Disc dia | 18 mm |
| Thread | M2 |
| Stem material | Stainless steel |
M2 Ø18 mm silver steel disc, 2.3 mm width, with roller
Disc styli are designed to inspect undercuts and grooves within bores which may be inaccessible to star styli. A range of disc styli offers a radius end roller to enable groove width measurement. Silver steel tips are heat treated and precision ground to a high tolerance.
| Disc material | Silver steel |
| Disc dia | 18 mm |
| Thread | M2 |
| Stem material | Stainless steel |
M2 Ø20 mm ceramic disc, 2.5 mm width, without roller
Disc styli are designed to inspect undercuts and grooves within bores which may be inaccessible to star styli. A range of disc styli offers a ‘radius end roller’ to enable groove width measurement. Ceramic tips are lightweight, hardwearing and non-magnetic.
Equivalent to Zeiss part number: 602030-8204-000
| Part Number | A-5555-0300 |
| Zeiss Order Number | 602030-8204 |
| DK | 20 mm |
| L | 5.5 mm |
| B | 2.5 mm |
| Weight | 3.0 g |
M2 Ø25 mm silver steel disc, 1.6 mm width, with roller
Disc styli are designed to inspect undercuts and grooves within bores which may be inaccessible to star styli. A range of disc styli offers a radius end roller to enable groove width measurement. Silver steel tips are heat treated and precision ground to a high tolerance.
| Disc material | Silver steel |
| Disc dia | 25 mm |
| Thread | M2 |
| Stem material | Stainless steel |
M2 Ø25 mm silver steel disc, 3.1 mm width, without roller
Disc styli are designed to inspect undercuts and grooves within bores which may be inaccessible to star styli. A range of disc styli offers a radius end roller to enable groove width measurement. Silver steel tips are heat treated and precision ground to a high tolerance.
| Disc material | Silver steel |
| Disc dia | 25 mm |
| Thread | M2 |
| Stem material | Stainless steel |
M5 high strength steel spherical disc, DK 15 mm, for Zeiss applications
M5 spherical disc.
Equivalent to Zeiss part number: 602030-0004-000.
| DK | 15.00 mm |
| EAL/B | 4.00 mm |
| Weight | 5.00 g |
M5 high strength steel spherical disc, DK 20 mm, B 4 mm, for Zeiss applications
M5 spherical disc.
Equivalent to Zeiss part number: 602030-0011-000.
| DK | 20.00 mm |
| EAL/B | 4.00 mm |
| Weight | 8.00 g |
M5 high strength steel spherical disc, DK 20 mm, for Zeiss applications
M5 spherical disc.
Equivalent to Zeiss part number: 602030-0005-000.
| DK | 20.00 mm |
| EAL/B | 4.00 mm |
| Weight | 9.00 g |
M5 Ø15 mm high strength steel disc, 1 mm width, L 40 mm, for Zeiss applications
M5 disc stylus.
Equivalent to Zeiss part number: 000000-1165-629.
| DK | 15.00 mm |
| DG/D | 7.00 mm |
| L | 40.00 mm |
| EAL/B | 1.00 mm |
| Weight | 5.00 g |
M5 Ø15 mm high strength steel disc, 1.5 mm width, L 21.5 mm, for Zeiss applications
M5 disc stylus.
Equivalent to Zeiss part number: 600341-8095-000.
Equivalent to Q-Mark part number: SDP-1521.5.
| DK | 15.00 mm |
| DG/D | 10.00 mm |
| L | 21.5 mm |
| EAL/B | 1.5 mm |
| Weight | 6.00 g |
M5 Ø20 mm high strength steel disc, 1 mm width, L 60 mm, for Zeiss applications
M5 disc stylus.
Equivalent to Zeiss part number: 602030-8091-000.
| DK | 20.00 mm |
| DG/D | 7.00 mm |
| L | 60.00 mm |
| EAL/B | 1.00 mm |
| Weight | 8.00 g |
M5 Ø21 mm silver steel disc, 3 mm width, with roller
Disc styli are designed to inspect undercuts and grooves within bores which may be inaccessible to star styli. A range of disc styli offers a ‘radius end roller’ to enable groove width measurement. Silver steel tips are heat treated and precision ground to a high tolerance.
| Material | Silver steel |
| Disk diameter mm (in.) | 21.0 (0.83) |
| Disk depth mm (in.) | 3.0 (0.12) |
| Roller depth mm (in.) | 5.0 (0.20) |
| Mass grams | 5.23 |