taper bit

taper bit

[′tā·pər ‚bit]
(design engineering)
A long, cone-shaped noncoring bit used in drilling blastholes and in wedging and reaming operations.
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References in periodicals archive ?
Steep Taper Bit has a pointed, triangular nose that cuts into highly-compacted soils, light rock and cobble.
The taper bit incorporates a unique spline configuration which makes it easier to remove the bit from the rod.