supply of drill bit & drill machine , air blower 850w,portable electric air blower ( heavy duty ) with dust extraction as per specif ication : voltage 110-230v, ac/dc ,rated input power : 800w-900w, volumetric flow rate 4.5 m3/min. , no l oad speed : 16000 rpm. [ warranty period: 30 months after the date of delivery ] ] , drill bit(s) rotary hammer drill ndrf specification:power supply 230 v, 50 hz,single phase p ower rating in watt 720 rotation speed of the hammer (in rpm) 1550 impact rate ( ipm) 4800 noise level i n db when working within 1 metre distance 95.6 length of electric cord provided in metres 5 3 pin 5 amp el ectric cord to be provided yes number of drill bits provided 5 length of drill bits (in cm) 30 chisel adjustme nt with mode selector switch for drilling/ chiselling 36 position weight of the hammer drill in kg 3. machine should have shock proof body yes suitable protective carry case provided yes warranty in years 1 instructio n manual to be provided yes rotary hammer drill is designed for punching of holes in hard material throug h the use of firing machnism yes [ warranty period: 30 months after the date of delivery ] ] , supply of optical visual fault locator (laser source meter); torch type. laser power output 30mw suitable to measure 30km lenght of ofc cable. [ warranty period: 30 months after the date of deli very ] ] , rotary hammer drill machine with drill bit 30 cm is designed for punching ofholes in har d material through the use of firing machnism working on single phase 230 v ac 50 hz supply specification :power supply 230 v, 50 hz,single phase power rating in watt 700 rotation speed of the hammer (in rpm) 1200 impact rate ( ipm) 3500 noise level in db when working within 1 metre distance 85 length of electric cord provided in metres 5 3 pin 5 amp electric cord to be provided yes number of drill bits provided 1 leng th of drill bits (in cm) 30 chisel adjustment with mode selector switch for drilling/ chiselling 36 position wei ght of the hammer drill in kg 4. machine should have shock proof body yes suitable protective carry case p rovided yes warranty in years 1 instruction manual to be provided yes rotary hammer drill is designed for punching of holes in hard material through the use of firing machnism yes [ warranty period: 30 months after the date of delivery ] ] , supply of cordless drill machine battery operated makita/bosch or similar (specification attac hed) [ warranty period: 30 months after the date of delivery ] ] , electric drill machine portable 230v/110v ac drill capicity hp rating-1hp make-ni ppon, neutron, wolf. accepted description as per gem contract order.specification:ower suppl y 230 v, 50 hz,single phase power rating in watt 500 rotation speed of the hammer (in rpm) 2100 impact rate ( ipm) 1000 noise level in db when working within 1 metre distance 60 length of electric cord provide d in metres 5 3 pin 5 amp electric cord to be provided yes number of drill bits provided 1 length of drill bit s (in cm) 30 chisel adjustment with mode selector switch for drilling/ chiselling na machine should have sho ck proof body yes suitable protective carry case provided yes warranty in years 1 instruction manual to be provided yes rotary hammer drill is designed for punching of holes in hard material through the use of firin g machnism yes weight of the hammer drill in kg 3. [ warranty period: 12 months after the date of deliv ery ] ] , earth tester specification: display type 4 digit lcd display measurable earth resistance range selection auto ranging method for resistance measurement 4-pole counts 4000 [ warranty period: 30 mo nths after the date of delivery ] ]