Gonar is a leading manufacturer of high quality drilling equipment. Gonar headquarters along with production facility are located in Katowice Gonar offers most popular systems with sinusoidal threads: R22, R23, R25, R28, R32, R35, R38 and few others (ST58, ST68). Trapezoidal threads are represented by systems:T38, T45, T51, GT60, T60. Gonar offer complete drill string for percussion drilling. Top hammer: - shank adapters to almost every kind of drifter used around the world - drill rods (round and hexagonal); - speed rods (MF, male-female), - drifter rods (extension rods ) (MM, male-male), - shank rods (threaded and tapered), - couplings and adaptors, - drill bits; - button bits, - cross bits. Tools for rotary drilling in softer rock formations, such as coal; - extraction tools: - rotary picks - holders for longwall shearers and roadhedaers. - hand pneumatic hammers with point tools and chisels. GSI ( Gonar Systems International ltd) offers complete solutions for roof reinforcement/anchor housing with our anchoring systems and umbrella systems (soil nails, micropiles and ground anchors) It applies to geotechnics with products for slope stabilization and also to civil engineering such as road construction and building industry: for strengthening walls of excavations and keeping foundations. Gonar is present with its products on all continents and in more than 75 countries. Gonar has its own R&D department which is continuously improving our products, monitoring their performance, degree of wear and need to make modifications. Apart from the R&D department, Gonar also has a well-equipped laboratory, painting facility and warehouse with vast storage area.