Counterbore
mono
Vischer & Bolli AG
to produce counterbores for Cap
screws, Hex Screwheads, Ejectors,
spot facing, Gasket-seats etc.
straight shank with "Weldon" flats,
to DIN 1835B
screws, Hex Screwheads, Ejectors,
spot facing, Gasket-seats etc.
straight shank with "Weldon" flats,
to DIN 1835B
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