This is the M4 ruby stylus #A-5003-5742.
Straight styli are designed to inspect simple features where direct, unobstructed contact with a measured surface is possible. A stainless steel stem offers excellent rigidity and is ideal for applications where weight is not critical. Zirconia tips are more suitable for abrasive surfaces such as cast iron parts.
|Thread mount (DG)||M4|
|Ball Diameter (DK)||2.0 mm|
|Length (L)||19.0 mm|
|Stem Diameter (DS)||1.4 mm|
|EWL (ML)||9.2 mm|
|Stem material||Stainless Steel|