The snap-on insert bits are even guaranteed...

But if you want the same thing for less, and no guarantee, try the McMaster Carr ones I listed in the second post (above), less than $1 each. I have yet to see a cheaper way to get a complete set of clutch head bits or screwdrivers than what McMaster Carr offers.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-