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pArAllels
Precision rules, straight edges, Parallels
154 AdjustAble pArAllels
3/8 – 2-1/4"/9.5-57MM
These adjustable parallels provide a wide range of use in layout, gaging,
inspection work and for setups on various machine tools. Their adjustablity
makes it possible to adjust them to exact size by micrometer measurement
and also permits use in place of several solid-type parallels.
These parallels are useful as gages in checking the size of slots and openings.
They are also convenient for use in machine vises, for leveling or adjusting
work on setups of milling and grinding machines, shapers, planers, drill
presses and for many other applications.
Parallels slide smoothly and can be easily adjusted. The smaller sizes A, B, and
C, are locked by one screw while the larger sizes, D, E, and F, have two lock
screws. All parallels are 9/32" (7mm) thick.

Set S154LZ with 154E in foreground

154 Adjustable Parallels
Range Length
Cat. No. EDP in mm in mm
154A 50578 3/8 – 1/2 9.5-12.7 1-3/4 45
154B 50579 1/2 – 11/16 12.7-17.5 2-1/8 55
154C 50580 11/16 – 15/16 17.5-24 2-11/16 70
154D 50581 15/16 – 1-5/16 24-33 3-9/16 90
154E 50582 1-5/16 – 1-3/4 33-44 4-3/16 105
154F 50583 1-3/4 – 2-1/4 44-57 5-1/16 130
154 Adjustable Parallel Sets
Cat. No. EDP Description
S154SZ 50584 Set of 4 parallels – Sizes A, B, C, D – In case
S154LZ 50586 Set of 6 parallels – Sizes A, B, C, D, E, F – In case
S154SZZ 55194 Case only for set of 4
S154LZZ 55195 Case only for set of 6

Checking inside measurement of slot
with parallel and outside micrometer

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