7 Degree Integral Drill Rods 1000mm Hex 22 ISO 9001 2008 Certificate For Blast Hole

7 Degree Integral Drilling Rods 1000mm Hex 22 Tapered Drill Rod for Blast Hole

Description

Tapered Drill Rods Are Used In Granite And Marble Quarry, Gold Mine, Railway, Tunnel, Etc. For Drilling

Tapered Drill Equipment Also Provides A Hexagonal Chuck Section To Provide Leverage For The Rotation Chuck Bushing, Which Usually Also Has A Forged Collar To Maintain The Proper Shank Striking Face Position In The Rock Drill, And Match A Tapered Bit At The Socket End. Holes Are Typically Drilled In 0.6 M Increments To Accommodate The Air-Leg Feed Length.

Notes:

1. The Ordinary Connection Taper Degree Is 7º, 11º And 12º, Other Degrees Like 4.8º, 6º And 9º Are Also Available Upon Request;

2. The Ordinary Shank Is Hex22 × 108mm, Hex25 × 159mm And Other Styles Are Also Available If Upon Customers’ Request;

3. The Rod Length Must Be Specified In Order;

4. In Order To Adapt To Different Rock Conditions, The Drill Rod Is Selected By Users.