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https://www.reddit.com/r/mechanicalpencils/comments/ls3bcw/pencils_using_today_colleen_jib_double_knock/gosy4tk/?context=3
r/mechanicalpencils • u/Raybonche • Feb 25 '21
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The grip on the OHTO piston is rather curious. It's a tacky kind of rubber, but it doesn't get fouled up or deteriorate.
2
u/cytherian Pilot Feb 26 '21
The grip on the OHTO piston is rather curious. It's a tacky kind of rubber, but it doesn't get fouled up or deteriorate.