DR Model 60 Reamer

Darron's 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.