Tools and cutters - Terms

Absolute edge

The large hammer used by a blacksmiths mate turn about with the smaller hammer of the black smith.

Angle cutter

Type of milling cutter used for single or double angles.The term angle cutters covers three types of milling cutters, the single or half angle the doubles angle and the equal or combined angle.

Back stick

Piece of wood used when slinning sheet metal by hand in a lathe.

Bell center punch

Device used for rapidly locating and marketing the centre of the flat end of a cylindrical workpiece, preparatory to heavier centre punching, centre drilling, turning in a lathe etc.

Blanking and cupping tool

Tool used to cut a blank and form a cup from sheet or strip metal at one stroke of the press.

Blow pipe.

Gas welding torch in which oxygen and acetylene are mixed and ejected from a nozzle.


Boiler Tap
Hand tap specially designed for tapping holes for use with boiler stays.

Boring bar
Bar carrying a cutter or cutters to enable holes to be bored which are larger in diameter than can be conveniently drilled by means of twist drills.

Boring tool
Single or double ended tool for machining a drilled or cored hole.

Box Spanner
Spanner in the form of a hollow tube, shaped at the end to fit a nut.

Box wrench

A type of closed end wrench made in many styles for specific sizes and shapes of bolt heads or nuts.

Broach

A long tool with number of cutting teeth which is pushed or pulled through a hole or across a surface to form the desired shape and size.


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