Mitutoyo Indicator Probes & Accessories

Mitutoyo contact points, styli and indicator accessories. The range has 6 items: 3 carbide needle contact points, 1 Contracer stylus, 1 part listed as MS3-1R25, and 1 centering holder for test indicators. Genuine Japanese-market stock. Ships from Japan with tracking. Import duties are included for US buyers; buyers outside the US pay their own duties and taxes.

Mitutoyo Indicator Probes & Accessories guide: models and how to choose ↓

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Mitutoyo Indicator Probes & Accessories guide: models and how to choose

Which Mitutoyo contact point or stylus do you need?

Match the part number to your instrument first. The table lists all 6 items. Weight and country of origin come from each product page. Size and use come from the product title or from Mitutoyo distributor listings (see Sources below).

Part no. Type Size Used with Weight Country of origin
21AAA329 Carbide needle contact point Ø0.45 × 5 mm Not confirmed 1 g Japan
21AAA333 Carbide needle contact point Ø1 × 20 mm, M2.5 × 0.45 thread Mu-Checker cartridge head probes 519-331 / 519-348 (distributor listing) 1 g Not disclosed
21AAA334 Carbide needle contact point Ø1 × 40 mm, M2.5 × 0.45 thread Mu-Checker cartridge head probes 519-331 / 519-348 (distributor listing) 2 g Japan
354884 (SPH-71) Contracer stylus, single bevel, carbide tip Height 20 mm, tip angle 12°, tip radius 25 µm Contracer contour measuring instruments, e.g. CV-1000/2000, CV-3200/4500 (distributor listing) 2.2 g Not disclosed
06ABF412 (MS3-1R25) Not confirmed Not confirmed Not confirmed 0.9 g Not disclosed
901959 Centering holder (test indicator accessory) Not confirmed Test indicators; models Not confirmed 100 g Japan

"Not confirmed" means we could not confirm the value on the product page or in a Mitutoyo distributor listing, so we do not claim it. "Not disclosed" is how the product page lists the country of origin. If you are not sure a part fits your instrument, send us your instrument's model number before you order.

How to choose

  • Needle contact points (21AAA series): the three points differ in needle diameter and length. The thinner and longer points reach narrower or deeper features. Check the thread on your probe or indicator before ordering.
  • Contracer stylus (354884 SPH-71): this is a stylus for Mitutoyo Contracer contour measuring instruments, not for dial or test indicators. Distributors list it with arms AB-31 (12AAM101) and AB-32 (12AAM102).
  • MS3-1R25 (06ABF412): the product page lists only the part number and weight. Its type and fit are Not confirmed, so check with us first.
  • Centering holder (901959): listed as a test indicator accessory. The compatible indicator models are Not confirmed.

Looking for the indicator itself? See Mitutoyo test indicators, Mitutoyo dial and digital indicators and Mitutoyo comparators and measuring stands. For surface measurement, see Mitutoyo surface roughness testers. Not sure which tool you need? Read which Mitutoyo tool measures what you're working on. Browse everything from the brand on the Mitutoyo page.

Sources: product pages on this store; Mitutoyo distributor listings for the 21AAA needle points (Global Test Supply, Microscope World) and for 354884 (MQS, Hoffmann Group).