Inner hole 6.4mm
Inner sleeve of nickel plated brass shaft with aluminum sheet
Bakelite material
The side screws are fixed and the single screw is firmly installed.
The surface has no burr, smooth, good handle, and the white scale line is very clear.
99A double row screw fixation
PN-99C: size; high 16mm, front diameter 30mm, bottom diameter 33mm, hole 6.4 mm
Inner sleeve of nickel plated brass shaft with aluminum sheet
Bakelite material
The side screws are fixed and the single screw is firmly installed.
The surface has no burr, smooth, good handle, and the white scale line is very clear.
99A double row screw fixation
PN-99C: size; high 16mm, front diameter 30mm, bottom diameter 33mm, hole 6.4 mm
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