Specification :

Internal Combustion Rock Drill YN27C, YN27A, YN27J, YN30A are also sold by our company.

Instruction
Internal Combustion Rock Drill Type YN27A is hand-oper-ating drill.It is mainly used for drilling blast holes in open air It is also useful in breaking, shovelling, digging , splitting and tamping jobs.
Specification
Weight 26-27.5 kg
Overall dimension ( L* W* H) 746* 315* 229 mm
Diameter of engine piston Æ 58 mm
Stroke of engine piston 70 mm
Rotating speed of engine with load > = 2450 rpm
Drilling speed > = 250 mm/ min
Oil consumption