2-1/2” S22
1Pages

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Catalog excerpts

DRILLING APPLICATIONS Designed to drill medium hard formations, compressive strength of which doesn't exceed 55 MPa (8000 psi). These include limestone, sandstone, dolomites and hard shale. DESIGN SPECIFICATIONS Bearing Type Friction w/Ball Retention Bearing Seal Type None Cutting Structure Milled tooth Rows Total: 7 Inner: 4 Gauge: 3 Insert/Teeth Total: 75 Inner: 33 Gauge: 42 Method of flushing fluid Bit Connection Type N-Rod (4Thd) FEATURES OPERATING PARAMETERS 2600 to 12600 lbf Weight on Bit* 1200 to 5700 daN 1,2 to 5,7 Tonnes Rotary Speed* 130 to 50 RPM - Actual drilling parameters must be determined for specific applications. Note: Due to continuous improvement of VALCO products, the design is subject to change without prior notice. Copyright © 2015 VALCO. All Rights Reserved.

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