down the hole drill
USD $1 - $2 /Set
Min.Order:2 Sets
Hefei Intaca Science-Technology Development Co., Ltd.
down the hole drill
Hydraulic down-the-hole drill is mainly used for blasting drilling in mines,tunnels,construction,etc, which also can be used in gas leak detection.
Features:
1.Feather trigger,easy-start
2.Work long time and lockable switch handle
3.Speed adjustable(0-300rpm)
4.Build-in air compressor for cleaning or water flushing
5.Drilling diameter 45-76mm and drilling depth 3-6m