Straight shank drills are held in a drill chuck, the tapered shank of which fits into the tapered spindle hole of the drilling machine. IS No. 7, AsJ+, Figs. 223 and 224* 1. The Little Doctor A First Aid For Drill Press Operators The Cleveland Twist Drill anbsp;...
|Title||:||Manual of Elementary Machine Shop Practice|
|Author||:||Ernest Churchill Phillips|