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Reviews around spring mechanism (5.00 of 5)
PaperPro inFLUENCE+25 Stapler - One Finger, No Effort, Spring Powered Stapler - Black/Gray (1140)
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Where it sometimes comes up short is that the spring mechanism is so strong that, when stapling only 2-3 sheets, the force is great enough that the staple is driven all the way through the top couple of sheets
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and then the spring mechanism stopped working.
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