supply of supply of demolition hammer, , supply of demolition hammer, professional heavy duty 1). weight of chipping hammer: app rox. 16 to 25 kg (gross weight including machine, chisels and carrying case) .2). chipping hammer supplied with adjustable bits: yes.3). power requirement: 220?230 v, 50 hz, single phase. 4). power rating: minimu m 1800 w. 5). chiseling impact rate: minimum 900 bpm. 6). chiseling impact force: minimum 45 joules. 7). noise level at 1 m distance during operation: maximum 100 db. 8). material of bits supplied: high tensile all oy steel. 9 ). bit diameter: should match with the size of bit holder of the equipment. 10). protective carry c ase: to be supplied for easy handling of equipment during transit. 11). material of carrying case: hard dura ble plastic. 12). tool holder / bit type: 30 mm internal hex type suitable for heavy duty chiseling. 13). chise ls to be supplied: 1 no. pointed chisel (approx. 30 mm ? 410 mm). and 1 no. flat chisel (approx. 30 mm wi dth ? 410 mm length). 14). handle: 360? rotating auxiliary handle for easy operation. warranty period: up t o 12 months from the date of delivery. [ warranty period: 12 months after the date of delivery ] ]