Drill Bits Flashcards
Why are large drill bits more likely to be sharpened than smaller ones?
Larger drill bits are more expensive
A magnetic drill press needs three features to be used to tap a drilled hole. These features are: reversible, speed control, and _______________________
Torque control
What can dull a drill bit quickly?
The wrong bit is chosen for a task
A forstner bit and spade bit are used for what type of material?
Wood
Concrete and mortar are drilled with what kind of bit?
Masonry bit
A twist drill bit works on what type of material?
Metal
What type of drill bit is long compared to its diameter?
jobber bit
What type of drill bit is somewhat shorter than a jobber bit?
Mechanic’s bit
What are the shortest bits referred to as?
Screw-machine (S/M) bits
Why is it generally best to use the shortest bit to complete a task?
Shorter bits are more rigid and less likely to break