This internal rock drill machine is easy to be operated and has competition price. It is sharp and can be worked well.

Weight of main machine(kg)	27
Overall dimensions(mm)	746*315*229
Type of engine	Single cylinder,air cooled two strokes
Cylinder dia.*stroke of piston(mm)	58*70
Rotating speed of engine	≥2450r/min
Displacement of engine plston	185cm3
Type of carburetor	Hand needle valve,no floating type
Lgnition system	Controllable silicon,contactless system
Drilling speed	≥250mm/min
Max drilling depth(m)	6
Fuel cnsumption	≤0.121/m
Tank capacity	≥1.41L
Mixture ratio of gasoline and lubricating oil in volumes	9:1
End of drill rod dimensions	Hexagonal22*108mm
Rotating speed of drill rod	≥200r/min
Clearance of spark plug(mm)	0.5-0.7

Features:

1,  The rock drill's engine is a hand operated,single cylinder and two stroke petrol engine with air cooling.

2, This drilling machine is easy to be operated.

3,  Its price is competition.

After sale service:

we have 3 months warranty.

1. within 3 months,if there is some accesorry going wrong,we will send you the accessory at once,free of charge or deliver the spare in the next order

2. in the period guarantee,we change the defective parts(but the wearing parts)for free in the condtion that the users comply the rules of transportation,storage and using,if the vibrator is broken or can not be working well.

3.no responsibility for man-made destroy.

4.If the buyer has any questions from our technical department, we can supply on-line service

ROCK DILL YN27C