Land is the outer portion of the body between two adjacent flutes of the twist drill bits.Land width is the distance between the leading edge and heel of the land, measured at a right angle to the lea ...
The high quality steel used in drills for most maintenance and industrial applications.
The distance from the outer edges of the cutting lips to the extreme back of the flutes
Flute of the twist drill bitsGroove cut in the body of drills to provide cutting surfaces, permit removal of chips and allow cutting fluid to reach cutting surfaces.
FeedsFeed rates for drilling are determined by the drill diameter, machinability of materials and depth of the desired hole. Small drills, harder materials and deeper holes require additional cosidera ...
Drill diameterThe diameter over the margins of a drill, measured at the point
Cobalt steelA heat-resistant steel that produces increased drill bits life
Chisel-edge angle of the twist drill bitsThe angle between the chisel edge and cutting lip, as viewed from the end of a twist drill bits.
Chisel edge of the twist drill bitsThe edge at the end of the web that connects the cutting lips of the twist drill bits.
Chip removal of the twist drill bitsThe ability of a drill to pull material that has been cut away from the point, up the flutes and out of the hole when drilling with the twist drill bits.