supply of supply & installation of heavy-duty rotary hammer drill machine , supply & installation of heavy-duty rotary hammer drill machine, tool holder: sds plus, pow er: 900 watt, drilling capacity in concrete: 6-32 mm, weight: 4-5 kg, dfr complete with carrying case and replacement drill bits tools. make: bosch , model: gbh 4-32 or similar. [ warranty period: 30 months aft er the date of delivery ] ] , masonry drill bit, size: 18 mm, overall length: 300 mm, working length: 250-260 mm, tip material: high-grade tungsten carbide, body material: hardened and tempered alloy steel, shank type: s ds-plus, u-shape/optimized helix flute design, tip angle: 130 degree - 140 degree, suitable for use with ro ary hammer drill (bosch, model: gbh 4-32) in hammer and rotation mode. make - bosch, makita, dewalt or similar. [ warranty period: 30 months after the date of delivery ] ] , m-16 galvanized steel anchor nut-bolt with washer, length: 300 mm, approx. weight: 1.5 k g each, conforming to is:1367. make - hilti, fischer or similar. [ warranty period: 30 months after the dat e of delivery ] ]