J&S Alloy Bull Shaft Clamp

Alloy Bull Shaft Clamp is manufactured at our Rutherford facility and is an integral component of a ‘best of breed’ Blast Hole drill string

Purpose:  Lock “Top Sub” to Bull shaft without welding




  • Strong and light weight – 27 kgs
  • No “Hot Works” required –  less down time and less resources
  • Not welding the Top-Sub to the Hi-tensile steel Bull shaft extends shaft life.

Longer Rotary Head life  –  No heat penetrating into rotary head impacting on seals and bearings