Roller Reamers are designed for reaming and stabilization in any type of formation. All parts of the tools are made of special alloy steel and heat treated for hardness. Drilling crews can easily replace any part in the field without the use of special tools.

offers three types of cutters for different type of formation.
When ordering please specify：

●Hole size.

●String type or near bit type.

●Drill collar size.

●Top and bottom connection.

●Cutter types. 
Specifications - Roller Reamer:

Model	O.D(mm)	I.D.(mm)	connection	Hole size(in)
WG155	155	31.7	NC38	6 1/8
WG200	200	38	NC46	7 7/8
WG212	212	44	NC50	8 3/8
WG215	215	44	NC50	8 1/2
WG244	244	57	NC50	9 5/8
WG311	311	71	6 5/8REG	12 1/4
WG444	444	76	7 5/8REG	17 1/2
WG558	558	76	7 5/8REG	22
WG660	660	76	7 5/8REG	26
WG711	711	76	7 5/8REG	28
WG914	914	76	7 5/8REG	36