Email: info@bitschina.et
Tel: +86 15076382950
Details
size (in) | 8 1/2 |
size (mm) | 215.9 |
Bearing Type | Journal Sealed Bearing/ Rubber O-Ring |
Tooth Type | MILLED TOOTH |
Nozzle qty | 3 |
Connection | 4-1/2″ API REG |
Recommended RPM (r/min) | 150-80 |
Recommended WOB (KN) | 0.35-0.8 |
Net / Gross weight (kg) | 36/39 |
Package dimension (mm) | 26*23*40 |
Note :The upper limits of WOB and RPM in above table should not be used simultaneously.
The Characteristics of milled tooth
1. High drilling speed and excellent cutting performance in soft to medium-hard formations.
2. Strong self-cleaning ability, effectively preventing bit balling during operation.
3. Good impact resistance and stable performance, suitable for various conventional drilling conditions.
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