"UDT MAKE" 3 point or 6 point construction rotary reamers are designed for
reaming and stabilization in any type of formation. All parts of the tools: central pin,
blocks, locking screws are made of special alloy steel and heat treated. Drilling crews
can easily replace any part in the field without the use of special tools, whether it is a
sealed or non sealed bearing roller reamer.
CUTTERS :Available types are described below.
CENTRAL PIN :The alloy steel used is carburized and hardened to ensure good
bearing wear characteristics and a slot at the end of the pin will prevent it from
CROSS PIN :This pin is driven into the top bearing block as an additional safety to
retain the main pin and cutter.
BLOCKS :These blocks have very little wear and need to be changed only after
several cutter changes.
They also allow to re-size the reamer to a different hole size when using different type
blocks but retaining the same body and pins.