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41 products
41 products
Bock 250 taps for drilling out sections for bock 250 (#6) nib units
M7.9 x .6
1st: taper
2nd: Plug
3rd: Bottom
TWSBI Traditional Converter
TWSBI Spring Converter
Both Converters fit the TWSBI Swipe and any other fountain pen that accepts the standard international converter (note that size or barrel and section may need modification to fit these larger converters)
TWSBI Spring Converter
Both Converters fit the TWSBI Swipe and any other fountain pen that accepts the standard international converter (note that size or barrel and section may need modification to fit these larger converters)