Homebrew PCBs

In a message dated 7/14/2005 6:54:07 P.M. Central Daylight Time,  
wrmaxwell@... writes:

or an  old dental pneumatic drill? 


Cumbersome to mount; have strange (1/16"???) shank size.   300,000 RPM 
(yes!), but hardly ANY torque at all.  Bit rotation would stall  "deep in work" and  
break  bits "coming UP".  


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