A good stock bender NEVER attempts to bend the bolt. If the hole is not larger then the stock bolt already in diameter, I open the hole one factional inch drill size larger than the stock bolt to allow room for movement of the wood. There have been times when this is not possible. Each job is evaluated individually and there are no "absolutes". That means one can not say this or that will happen every time I bend a stock. Those gunstocks with tubes imbedded in the wrist are a challenge but they may be bent too, using mechanical inletting techniques instead of heat manipulation.
