View source for Drilling and Boring

[https://en.wikipedia.org/wiki/Drilling '''Drilling'''] is most often the process of revolving a tool bit at a suitable speed to cut a hole into or through a piece of material - although the reverse can be true ''(e.g. when drilling on a '''[[Centre Lathe]]''' the work is usually held with a '''Chuck''' or '''Faceplate''' and revolved while the drill bit is held stationary in a '''Tailstock''' '''Toolpost''')''.


[https://en.wikipedia.org/wiki/Boring_%28manufacturing%29 '''Boring'''] is used to enlarge an existing hole - one which often, but not always, has been drilled previously. This done usually with a single point tool and, as with drilling, either the tool or the workpiece can revolve depending on the operation in hand.


[https://en.wikipedia.org/wiki/Drill_bit '''Drill Bits'''] and [https://en.wikipedia.org/wiki/Boring_%28manufacturing%29 '''Boring Tools'''] are designed to be gripped using the wide variety of devices used to hold them. Most commonly they have a [https://en.wikipedia.org/wiki/Drill_bit_shank#Straight_shank '''Parallel Shank'''] which is gripped by most '''[[Hand Drills]]''' and '''[[Portable Electric Drills|Portable Power Drills]]'''; traditional [https://en.wikipedia.org/wiki/Drill_bit_shank#Brace_shank '''Square Tapered Shanks'''] were held in a '''[[Carpenter's Brace]]''' and [https://en.wikipedia.org/wiki/Drill_bit_shank#Morse_taper_shank '''Morse Taper Shanks'''] are used in many '''[[:Category:Machine Tools|Machine Tools]]'''. [https://en.wikipedia.org/wiki/Drill_bit_shank#Hex_shank '''Hexagonal Shanks'''] can be used in ordinary [https://en.wikipedia.org/wiki/Chuck_%28engineering%29 '''3-jaw chucks'''] when extra [https://en.wikipedia.org/wiki/Torque '''Torque'''] is required and many '''[[Portable Electric Drills|Hammer Drills]]''' require bits with [https://en.wikipedia.org/wiki/Drill_bit_shank#SDS_shank '''SDS Shanks''']. 




[[Category:Tools and Equipment]]