Internal combustion rock drill hand-held internal combustion engine YN27, YN27 rock drill 
 YN27 internal combustion rock drill, YN27 hand-held internal combustion rock drill, internal combustion rock drill selected high-quality YN27, YN27 rock drill 
 Internal combustion rock drill is divided into: YN27 internal combustion rock drill, YN27 internal combustion rock drill, YN27 hand-held internal combustion rock drill, YN30 internal combustion rock drill. YN27 internal combustion rock drill Weight only 27 kg, easy to carry, suitable for mountain, no power, YN27 rock drill equipment in areas without air pressure and liquidity is particularly suitable for large temporary projects. 
 YN27 internal combustion rock drill product features: 
 1, YN27 internal combustion rock drill head without replacing internal parts, just required moving the handle, you can work. 
 2, using the YN27 easy to operate internal combustion rock drill, more time, effort, with fast cutting speed, high efficiency. 
 3, YN27 the current hand-held internal combustion rock drill class of similar products, and similar products and can completely interchangeable parts. 
 4, YN27C hand-held internal combustion rock drill perforated the rocks, vertically downward, horizontal up less than 45 ° vertically down the deepest drill up to six meters. 
 5, YN27 rock drilling machine in terms of mountains, plains, both in the heat of 40 ° or 40 ° below zero cold areas can work, this machine has a wide range of adaptability. 
 YN27 internal combustion rock drill parameters: 
 Model YN27C type of rock drill rock drilling 
 Synonyms internal combustion rock drill is widely used in mining the scope of application, road construction, quarrying, engineering, defense 
 Bore diameter 26-46 (mm) hole to the depth of ≥ 6 (m) 
 Drilling speed ≥ 250 (mm / min) the impact of energy ≥ 20 (J) 
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