twist drill


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

twist drill,

n 1. a drill having one or two deep helical grooves extending from the point to the smooth portion of the shank.
2. a spiral bone bur.
References in periodicals archive ?
According to Jung and Ke (2007), the straight flute design, such as that in gun drills, adds strength to the drill and reduces the distance the chip must travel to escape the bore, when compared to twist drills.
After the twist drills are grinded out with the designated different angles, the main drill point angles are measured for each twist drill as proposed by Kim and Zou [22]; the measurement values of the drill point angles are shown in Table 1.
Scott Allison, president of MTD Acquisitions, says his group intends to operate Minnesota Twist Drill and continue to serve its customers.
Our intention is to operate Minnesota Twist Drill and continue to serve our customers," said Scott Allison, President of MTD Acquisition Inc.
There is also the element that a twist drill has to push and cut through material over its entire diameter, i.
Step drill: Two or more diameters may be ground on a twist drill to produce a hole with stepped diameters.
Tenders are invited for 1) h s s hand hacksaw blade 2) special twist drills h s s morse taper 3) h s s centre drills 4) h s s centre drill type a 5) h s s centre drill type a 6) h s s centre drill type a 7) centre drill type b
com) DR indexable twist drills are optimized for use on all steels, alloys and cast iron.
It stores dozens of special drill point geometries in memory, and sharpens HSS, cobalt, and carbide 2 flute twist drills with diameters from 1/8" to 5/8".
diameter shank to chuck on for durability and mounts on HSS Fast Spiral Twist Drills, which allow faster chip clearance.
introduces a revolutionary concept in twist drills that will increase productivity and not drill price.