Thread: What are the best bits to use for drilling bolt heads (safety wire)?
View Single Post
  #4 (permalink)  
Old 01-14-2002, 05:59 PM
jim C jim C is offline
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2001
Location: Baraboo, WI, wi
Cobra Make, Engine: scratch built, Hi Tech fiberglass body
Posts: 3
Not Ranked     
Default drilling bolts
I've had good luck drilling both grade 8 and aircraft AN bolts using a 3/32 regular high speed bit. Use a drill press and once started keep constant pressure untill all the way thru. spray wd40 or cutting oil on while drilling. Use a slow speed. Drilling the head doesn't weaken the bolt.
__________________
Jim Clement
Reply With Quote