supply of supply of 5 drill bit(s) rotary hammer d [supply of 5 drill bit(s) rotary hammer drill ndrf, power supply - 230 v, 50 hz ,single phase, power rating 700 to 1000 watt, rotation speed of the hammer (in rpm) 1200 to 1650, impact rate ( ipm) 3500 to 5000, number of drill bits require minimum 5 nos. length of drill bits (in cm) minimum 30 cm, chisel adjustment with mode selector switch for drilling/ chiseling require minimum 36 position, shock proof machine body require, protective carry case require, rotary hammer drill is require for punching of holes in hard material through the use of firing mechanism, warranty require minimum 1 year. make/brand:bosch model gbh 2-28dv. black+decker, dewalt, ibell rotery]supply of 5 drill bit(s) rotary hammer d [supply of 5 drill bit(s) rotary hammer drill ndrf, power supply - 230 v, 50 hz ,single phase, power rating 700 to 1000 watt, rotation speed of the hammer (in rpm) 1200 to 1650, impact rate ( ipm) 3500 to 5000, number of drill bits require minimum 5 nos. length of drill bits (in cm) minimum 30 cm, chisel adjustment with mode selector switch for drilling/ chiseling require minimum 36 position, shock proof machine body require, protective carry case require, rotary hammer drill is require for punching of holes in hard material through the use of firing mechanism, warranty require minimum 1 year. make/brand:bosch model gbh 2-28dv. black+decker, dewalt, ibell rotery],supply of 5 drill bit(s) rotary hammer drill ndrf, power supply - 230 v, 50 hz ,single phase, power rating 700 to 1000 watt, rotation speed o f the hammer (in rpm) 1200 to 1650, impact rate ( ipm) 3500 to 5000, number of drill bits require minimum 5 nos. length of drill bits (in cm) minimum 30 c m, chisel adjustment with mode selector switch for drilling/ chiseling require minimum 36 position, shock proof machine body require, protective carry case r equire, rotary hammer drill is require for punching of holes in hard material through the use of firing mechan