DRILL-PRESS OPERATOR

Domain	Definition
Occupations	Operates previously set up drilling machines, such as single- or multiple-spindle drill presses to drill, ream, countersink, spot face, or tap holes in metal or nonmetal workpieces according to specifications: Lifts workpiece manually or with hoist, and positions and secures it on machine table in drilling jig or holding fixture. Moves machine controls to feed tools into workpiece, and engages automatic feed. Observes machine operation, and verifies conformance of drilled workpiece to specifications, using fixed gauges, calipers, and micrometers. Changes worn cutting tools, using wrenches. Moves controls to adjust cutting speeds, feed rates, and depth of cut. May assist MACHINE SETTER (machine shop) 600.360-014 in setting up machine. May sharpen cutting tools, using $T3bench grinder.$T1 May perform minor assembly, such as fastening parts with nuts, bolts, and screws, using power tools and handtools. May be designated according to product as Barrel Reamer (ordnance); or function of machine as Reamer Operator (machine shop); Tapper Operator (machine shop). (references)
	Drills holes and sockets for stones or hinges in pieces of jewelry, such as brooches, rings, and bracelets: Inserts drill bit of specified size in chuck of press and starts drill. Holds piece of jewelry against drill, pressing it until holes or sockets are formed. May use hand drill. (references)
Source: compiled by the editor from various references; see credits.

Hexadecimal (or equivalents, 770AD-1900s) (references)

Leonardo da Vinci (1452-1519; backwards) (references)

Binary Code (1918-1938, probably earlier) (references)

HTML Code (1990) (references)

ISO 10646 (1991-1993) (references)

Encryption (beginner's substitution cypher): (references)

Specialty Definition: DRILL-PRESS OPERATOR