Roll Pin
Roll Pin Punches are used to drive roll pins. Standard Pin Punches should NEVER be used on a roll pin. Because of the hollow, thin wall construction of a roll pin, a standard pin punch will often collapse,mar or distort the end of the pin or be driven into,and jammed inside, the hollow core of the roll pin. When choosing a Roll Pin Punch, select one that is no larger than the compressed diameter of the pin. If a punch is used that is larger than the pin,the surrounding metal in which the pin is seated can be damaged.Also, a Roll Pin Punch should not be used which is smaller than the compressed diameter of the pin. If this occurs, it may be possible to drive the punch through the hollow center of the roll pin.
Roll pin punches are designed with a small projection in the center of the pin tip to support the circumference of the roll pin. The tips of Roll Pin Punches are NOT FLAT and should NEVER be used on regular solid pins. If a roll pin punch is used on a solid pin, it will mar or mark the pin.
If the end of a Roll Pin Punch is damaged or deformed, it should be discarded. It is virtually impossible to regrind the tip of the roll pin punch and properly shape the center projection. When using a Roll Pin Punch, make sure the axis of the shank of the Roll Pin Punch is in line with the axis of the roll pin. DO NOT cant the Roll Pin Punch off to one side.When you strike the Roll Pin Punch, hit it directly on the top of its head. If you strike the head of the Roll Pin Punch at an angle you may bend the shank.
Read more about this topic: Punch (tool)
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