taper drill bit

Crawler-type dwon the hole drilling rig for water well drilling 200 meters Track type multipurpose water well drill rig, all new designed, high efficiency and multipurpose hydraulic drill rig, mainlyfor ... Read More Get Best Price

ZGYX-452 Product Advantages 1. High-end products, low-end prices and excellent cost performance. 2. Zgyx-452 all-in-one open-bore drilling rig drives the working principle of screw air compressor and drill ... Read More Get Best Price

ZGYX-422 integrated DTH drilling rig using DTH hammer and bits, with take cab Product Information Description Product Features: 1. The propulsion system adopts hydraulic brake motor, chain, sprocket and tube ... Read More Get Best Price

ZGYX-425 Automatic All-in-one Open-top Hammer Drill Product Information Description This series of products is a drilling rig developed and manufactured by zhejiang zhigao machinery co., LTD. Its standard is ... Read More Get Best Price

ZGYX-424 Automatic All-in-one Open-top Hammer Drill Product Information Description This series of products is a drilling rig developed and manufactured by zhejiang zhigao machinery co., LTD.Its standard is ... Read More Get Best Price

Product Description: Water well drilling rod. for deep water well drilling. Our drill pipe adopts high quality steel and advanced heat treatment technology, which ensures the fatigue life and nitrogen treatment ... Read More Get Best Price

89mm drilling rod standard thread API 2 3/8" REG for water well drilling Product Description: Water well drilling rod. for deep water well drilling. Our drill pipe adopts high quality steel and advanced heat ... Read More Get Best Price

89mm drilling rod standard thread API 2 3/8" REG for water well drilling Product Description: Water well drilling rod. for deep water well drilling. Our drill pipe adopts high quality steel and advanced heat ... Read More Get Best Price

Product Description A kind of DTH hammer which is shorter but more efficient and energy efficient. we called them supper speed series DTH hammer. High impact frequency, high drilling speed, low gas consumption. ... Read More Get Best Price

Product Description The characteristics of High air pressure DTH hammer without foot valve. It is a kind of high air pressure down the hole hammer, without foot valve, The driling speed is higher than the ... Read More Get Best Price