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We are leaders in the market for providing best range of Pneumatic Self Drilling Anchor Rods
Self-Drilling Anchors (SDAs) are hollow rockbolts which serve as both the drill string during drilling of a support hole, and as the support tendon once grouted into place. A single use drill bit, selected to suit the ground condition, is fitted to the leading end of the SDA with a plate and nut fitted on the trailing end. Couplers can be used to combine SDA sections for longer support depth.