Best diamond core drill bit extension rod bar from China professional supplier

Core bit extension rods are used to quickly and easily achieve a greater depth when drilling with a diamond core drill bit. Operators can attach multiple extension rods/bars to achieve longer coring.

ChinShine Core bit extension rod/bar adapters made with industrial grade heat treated steel, which is strong and stable quality for high demand market.

Diamond core drill bit extension rod connect to compatible diamond core bits for dry or wet coring to extend the reach of the bits and allow them to access hard-to-reach areas, it can also allow for diamond core bits to be used further away from the anchor stand mounting.

Available thread type: 1 1/4-7 UNC, 5/8-11, M14, M22, M41, 1/2BSP, etc.
Length: 150mm, 200mm, 300mm, 350mm, 400mm, 450mm, 500mm, all length can be customized.