A bar, shaft or spindle around which other components are arranged or assembled. The term has been extended in oil and gas well terminology to include specialized tubular components that are key parts [..]

"miner's pick," 1510s, of unknown origin; perhaps borrowed from French mandrin, itself of unknown origin. Also applied from 17c. to parts of a lathe or a circular saw.

  A tapered steel rod around which composite materials are wrapped to make a shaft.

A tapered steel rod around which composite materials are wrapped to make a shaft. 

A tapered steel rod around which composite materials are wrapped when making a shaft. Also, the bar that is removed from a molded golf grip to determine the core size of the grip.

A tapered steel rod around which composite materials are wrapped when making a composite shaft.

1) a form, generally of elongated round section used for size and to support hose during fabrications and/or vulcanization. It may be rigid or flexible; 2) a tapered expanding device, fixed in diamete [..]

a long, round, smooth rod capable of being coiled in a small diameter. It is used for support during the manufacture of certain types of hose. (The mandrel is made of rubber or plastic material and ma [..]

a non-flexible cylindrical form on which a hose may be manufactured.

Metallic structure upon which articles to be turned are placed. Used for example in manufacturing mirrors.

A bar with screw in clamping facility to carry a part for machining. Can have other useages

A cylinder looking unit that is used with coil binding machines with a coil inserter. The coil winds around the mandrel before being inserted into the punched document. The size of the mandrel depends [..]

Mandrel is a synonym for form.

The tapered drum upon which the cylinder record is placed for playing.

A bar used to retain the cavity or enlarge the bore during hollow forging.

(n) any of various rotating shafts that serve as axes for larger rotating parts

A graduated, marked cone that is used to measure the size of rings. A ring is placed on the cone and its size is taken as the level on the cone where is fits snugly. The measure of ring size varies in [..]

A metal bar serving as a core around which other metals are cast, forged, or extruded, forming a true, center hole.

A special tool used to push bearings in or to pull sleeves out. A testing device used to measure for excessive deflection in a flexible conduit.

A cylindrical bar, spindle, or shaft around which other parts are arranged or attached or that fits inside a cylinder or tube.

A cylindrical bar, spindle or shaft around which other parts are arranged or attached or that fits inside a cylinder or tube.

A round object used as an aid for shaping a material, e.g. shaping or enlarging a ring, or bending or enlarging a pipe without creasing or kinking it. A tool or component of a tool that grips or c [..]