Jonard PB-7 Burnishing Pen, 4.5 x .375'', with 6 Replaceable Blades

The handy and flexible Jonard PB-7 4.5 x .375" Burnishing Pen with Six Burnishing Blades is used to clean general-type relay contacts. Adjust length and rigidity of the abrasive burnishing blade by varying the exposed length in the chuck.

Five abrasive, replaceable 0.188 x 1.5 x .007" blades are stored in opposite end of the pen and one comes in the chuck. This burnishing pen comes with a removable cap and is 4.5" long and .375" in diameter.