The 505 series caliper with dial is designed with a new dial movement, which can achieve extremely smooth sliding and has good shock protection function.
The sliding surface is coated with titanium, which is durable and long-lasting (excluding 0-300mm and 0-12 "types). After 100000 sliding tests, there is no wear phenomenon.
Can measure outer diameter, inner diameter, depth, and step difference.
The slider is equipped with locking screws.

505 series caliper with watch