The connecting rod (1) has a small end (2) which comprises a bearing bore (3), in particular for receiving a pin (36) of an engine piston (37) of an internal combustion engine.

The rotor bore housing also defines a first bearing pocket corresponding to the first rotor bore and a bearing pocket corresponding to the second rotor bore axis.

On the pivot side of the catch (5) there is an open drilling (9) in which a locking member (11) with a return spring (10) can slide.

The rotor bore housing defines a first rotor bore and a second rotor bore.

A reciprocating pump housing having a suction valve bore, a discharge valve bore, a plunger bore and an access bore.

The nozzle includes a central bore comprising a conical bore and a cylindrical bore.

The bearing surface defines a bore and is arranged to support the shaft when the shaft is movably housed within the bore in use.

The first and second pipe bores isolate fluid flow in the first pipe bore from fluid flow in the second pipe bore.

A tool head has a base body (1) with a reception bore (6) and a holding bore (7) that extends perpendicular thereto.

A third bore extends rearwardly from the second bore and opens into a fourth bore.

Immediately behind the widening section (7) of the bore (5), the bore wall has a grooved section (9), the grooves extending round the bore (5).

The collet having a first bore and a second bore.

A seating member provided with an internal bore (12) which defines the valve seating region (30), wherein the internal bore (12) further defines a flow re-directing region (32) downstream of the valve seating region (30).

An insulative core is positioned in the first bore and defines a third bore concentric with the first bore.

According to the invention, the additional bore is a leakage receiving bore (4) or a noise reducing chamber (12).