laster

in shoemaking:

One who fits the parts of shoes to lasts preparatory to the subsequent operations, especially in a shoe-factory.

A tool like a pair of pincers used in stretching the upper-leather of a boot or shoe on the last.

A workman whose business it is to shape boots or shoes, or place leather smoothly, on lasts; a tool for stretching leather on a last.

A workman whose business it is to shape boots or shoes, or place leather smoothly, on lasts

A tool for stretching leather on a last.