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Gun drilling represents a advanced and high effective hole drilling technology. Not only used for drilling deep hole (length and diameter ratio >10), but also for drilling precise shallow hole. It consists of drill stock, drill stem and drill bit which are all welded together. The hole in the middle is the channel through which the cutting fluid enters the cutting area and the chips are removed outside by a v-shaped groove.
Gun drill designed with a unique and scientific structure can ensure an excellent chip cutting performance during the drilling process, a precision hole can be obtained through one time drilling process.
Practically, gun drill machining can achieve a very high bore tolerance(IT6—IT11), surface roughness(Ra6.3—Ra0.1) and very deflection(linearity 0.15mm/1000mm) the cutting speed can reach to over 30-100mm/min. gun drill machining can replace the drilling, boring, reaming process through one time drilling, featuring with strong process reliability.
GSM provides customers with full range of gun drill products and deep hole drilling equipments featuring high quality, precision and durability to achieve a great cost reduction in metal processing industry. The usual tooling products include single blade gun drill, double blade gun drill, step drills, and coated gun drills etc. the blade diameter of GSM gun drills ranges from 3mm to 40 mm and the overall length can reach to 5000mm. GSM has an extensive experience in deep hole drilling solutions for moulds, automotive, mine and petroleum machinery, aviation, turbine and machine tool industries.
