Hole covers is an important tool in drill & blast operations. Hole covers prevent unintended back-filling of the drilled blast hole with drill cuttings. It also prevents other surface matter entering and contaminating the hole prior to charging. Heavy mud at the bottom of the hole can corrupt explosive products, causing low order detonation that can result in toe, fume, or even misfire. The prevention benefits far exceed the life-cycle cost of blast hole covers.
- Mark Blast hole locations
- Keep Blasts holes dry
- Keep debris out of Blast hole
- Highly Visible (Yellow)
- UV Resistant
- Color Does not fade
- Dimensions: 190mm X 190mm X 130mm