Bradley Jon  <br/><br/>
Screw Threads And Twist Drills 

 -  Tech Publication 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Screw And Drill
<br/><br/><label>Dewey Class. No.: </label>621.9  / Bra/Hal