Measuring spindle is mounted in long guideway with lever controlled retraction
Measuring spindle and anvil spindle have an M 2.5 connection thread, thus enabling the use of interchangeable anvils that are also used in dial indicators and dial comparators
Anvil spindle can easily be fine adjusted
Constant measuring force as a result of built-in spring, eliminating user influence
Maximum wear resistance due to non-contact positioning in conjunction with carbide tipped measuring faces
Technical data
Order no.
Product type
Application range mm
Measuring span in mm
Repeatability fw (µm)
Measuring force
4454000
840 FG
0 – 50
2 mm
1 µm
7.5 N
4454001
840 FG
40 – 90
2.5 mm
1 µm
7.5 N
Rugged, forged steel frame with heat insulators
Measuring spindle is mounted in long guideway with lever controlled retraction
Measuring and anvil spindle have precision tapered bores for mounting interchangeable anvils (with accessory 40 He)
Anvil spindle can easily be fine adjusted
Constant measuring force as a result of built-in spring, eliminating user influence
Maximum wear resistance due to non-contact positioning in conjunction with carbide tipped measuring faces
Technical data
Order no.
Product type
Application range mm
Measuring span in mm
Repeatability fw (µm)
Measuring force
4451000
840 FH
0 – 30
2 mm
1 µm
7.5 N
4451005
840 FH
30 – 80
2.5 mm
1 µm
7.5 N
Longer service life due to the ceramic measuring faces
Rugged, forged steel frame with heat insulators
Measuring spindle is mounted in long guideway with lever controlled retraction
Measuring spindle and anvil spindle are both made of hardened stainless steel, ceramic measuring faces
Adjustable centering stop for surface centering
Anvil spindle can easily be fine adjusted
Constant measuring force as a result of built-in spring, eliminating user influence
Maximum wear resistance due to non-contact positioning in conjunction with carbide tipped measuring faces in connection with ceramic measuring faces
Technical data
Order no.
Product type
Application range mm
Measuring span in mm
Parallel error in µm
Flatness in µm
Repeatability fw (µm)
Measuring force
4450100
840 FC
0 – 25
2 mm
1 µm
0.2 µm
1 µm
7.5 N
4450101
840 FC
25 – 60
2 mm
2 µm
0.2 µm
1 µm
7.5 N
Rugged, forged steel frame with heat insulators
Measuring spindle is mounted in long guideway with lever controlled retraction
Measuring spindle and anvil are made of hardened stainless steel with carbide tipped measuring faces
Adjustable centering stop for surface centering
Anvil spindle can easily be fine adjusted
Constant measuring force as a result of built-in spring, eliminating user influence
Maximum wear resistance due to non-contact positioning in conjunction with carbide tipped measuring faces