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T. O'Heir · September 12, 2008, 10:19 PM

"...or made from brittle materials..." They're supposed to break. The 'bits' are designed to break before the screwhead is damaged. The problem is that replacing them can be expensive and a nuisance. None of the smithies I know use them. They buy inexpensive screw drivers and grind them to fit.
Files and stones, improperly used, cause more damage than anything other tool. Except for a rotary tool like a Dremel.

September 12, 2008, 10:19 PM	#5
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,453	"...or made from brittle materials..." They're supposed to break. The 'bits' are designed to break before the screwhead is damaged. The problem is that replacing them can be expensive and a nuisance. None of the smithies I know use them. They buy inexpensive screw drivers and grind them to fit. Files and stones, improperly used, cause more damage than anything other tool. Except for a rotary tool like a Dremel. __________________ Spelling and grammar count!