DR Model 60 Reamer

The Darron Oil Tools DRS Series Sealed Bearing Roller Reamers give maximum rotating hours downhole with minimum rig time in changeover of assemblies.

6 Point Near Bit
Run directly above the bit primarily in badly formed, crooked holes. The six cutters provide the greatest reaming capability and stabilization characteristics available.

3 Point Near Bit
Run directly above the bit to ensure improved stability of the bit, giving faster penetration rates.

3 Point String
Run in the drill collar string to maintain a straight and true well bore and to ream through faults such as key-seats and ledges.

Tool Features

A completely integral (weld free) body ensures uniformity of strength.
A hardfaced area is applied on both the leading and trailing edges to reduce wear.
With the exception of the cutters, all parts of the reamer assembly are flush to the body to maximise tool life by reducing areas of potential wear.
Circulation passages milled in the body allow maximum fluid circulation.
Blocks, cutters and spindles are manufactured from high grade alloy steels and finally carburized and hardened for greater wear resistance.
Different gauge sizes are achieved by using interchangeable blocks or cutters depending on the hole size.
Bearing block design provides an interference and keyed fit between body and block to ensure safe retention.
Simple design ensures assembly / disassembly procedures are easily completed on the rig site.