A Dictionary of Occupational Terms Based on the Classification of Occupations used in the Census of Population, 1921.

ORDER VII.—METAL WORKERS (NOT ELECTRO PLATE OR PRECIOUS METALS)

Sub-order 8.—Other Workers

231.—Drillers (Hand, Pneumatic or Electric)

bear puncher: a hydraulic driller q.v. who controls handles of hydraulic machine called a "bear" to punch holes in ship's frame, deck beams, channel bars, etc.; usually done by hole borer q.v.
borer, hole borer (shipbuilding) ; cutter, hole cutter: a hand driller q.v. who cuts with brace and drill, holes which it has not been possible to punch in previous stages; cf. bear puncher.
cutter, hole cutter (shipbuilding): see borer.
driller: general term to cover any worker cutting circular holes in metal, with a portable hand or machine tool, including hand driller, machine driller q.v.; cf. driller, drilling machinist (200); sometimes specifically designated, according to kind of drilling machine used, e.g. air driller (pneumatic), electric driller, hydraulic driller, pneumatic driller; or according to article worked upon, e.g., anchor driller, body driller (vehicles), frame driller (pianos), shell driller (boiler making).
hand driller: marks points at which holes are to be drilled in metal, using rule, dividers, scribing tools, etc., from blue prints; selects and fits drill in brace according to diameter of bole to be drilled; turns brace by hand, driving drill through metal by pressure of body against brace; for drilling small holes with accuracy, may use a bow drill.
machine driller: as for hand driller q.v. using a portable drilling machine driven by electric, hydraulic or pneumatic power; may fix and use a jig to determine points at which holes are to be drilled.
screwer (small arms): a hand driller q.v. who reamers out screw holes in small arm parts and fits screws, using a belly brace, drill and reamer.

From: A Dictionary of Occupational Terms Based on the Classification of Occupations used in the Census of Population, 1921,
Ministry of Labour, 1927. Digitised by Peter Christian, August, 2016. This text is in the Public Domain.