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Drilling Reamer

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Drilling Reamer

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Category： Drilling tool(Sub)

Key words：Drilling tool(Sub)Drilling Reamer

Service Hotline：+86-513-87635480

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The roller stabilizer (drilling reamer) is used for all kinds of reaming stabilization in drilling operation, especially the function of stabilization in drilling of the abrasive formation. It is a very popular tool for hole size from 4 5/8 to 26″. Additionally, it can be used in different hole when same body is equipped with different bearing block and roller. The body is made of modified alloy steel, fully heat treated to 285~341Brinell hardness and 54J minimum impact strength.

Rollers are available below:

1. Narrow-teeth type is used for cutting of hole wall for soft formation.

2.Wid-flat-teeth type is used for crushing into pieces of borehole wall for medium and hard formation.

3.Inserted tungsten carbide alloy type is for hard formation.

Thechnical specification and parameters:

Type	Hole(in)	Thread API	O.D.(mm)	I.D(mm)	Overall Length (mm)	O.D.on each end (mm)	Roller dia. (mm)	Roller length (mm)
JKQ155	6 1/8	3 1/2"	155	31.7	1470/1572	140	51	200
JKQ206	8 1/8	4"IF	206	38	1600	160	70	200
JKQ212	8 3/8	4 1/2"REG	212.7	44	1600	160	70	200
JKQ215	8 1/2	4 1/2"REG	215.9	50.8	1730/1844	160	70	250
JKQ244	9 5/8	NC50	244	57	1800	178	70	250
JKQ311	12 1/4	6 5/8"REG	311.2	71	1773/2127	203	105	300
JKQ444	17 1/2	7 5/8"REG	444.5	76	2200	228	140	350
JKQ660	26	7 5/8"REG	660.4	76	3000	254	178	400