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Ballpoint pen installation
The ballpoint penholder accepts cylinder pens up to 8.5 mm in diameter or hexagon
shaped pens up to 7.5 mm side-to-side and whose tips extend between 3 and 3.5
mm past the ballpoint penholder's opening.
Hexagonal
Cylindrical
ball-point pen
ball-point pen
CHAPTER 2. CONNECTION AND PREPARATION
Ball-point pen
Tip of the pen
holder
Thumb
screw
2-11
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