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Drill stem tools
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The Drilling Reamer

    The drilling reamer is used for reaming in drilling operation, especially used for the function of stabilization in drilling of the abrasive formation. It is a very popular tool which is suitable for hole with range from 6 1/8" to 26". Additionally, it can be used to different hole when equipped the same body with bearing block and roller.

Technical parameters and specifi cations

Type Hole(in) Thread API O.D.(mm) I.D.(mm) O.D. on each end(mm) O.D. on each end(mm) Roller Length(mm)
JKQ155 6 1/8 3 1/2IF 155 38 121 51 200
JKQ206 8 1/8 4IF 206 38 160 66.7 200
JKQ212 8 3/8 NC46 4 1/2REG 212.7 44 160 70 200
JKQ215 8 1/2 NC50 4 1/2REG 215.9 44.5 165 70 250
JKQ244 9 5/8 NC50 244.5 57 178 79.4 250
JKQ311 12 1/4 6 5/8REG 311.2 71 203 101.6 300
JKQ444 17 1/2 7 5/8REG 444.5 76 228 140 350
JKQ660 26 7 5/8REG 660.4 76 254 178 400

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