DHD Shank DHD340 DHD350 DHD360 DHD380 DTH Borehole Bit for Well Drilling

Diameter Flushing holes Splines No.×Button Diameter(mm) Bit Shank Length(mm) Weight mm inch Gauge Front Kg Ib φ203 8 3 10 9×φ18 12×φ18 350 50 110.2 φ216 8 1/2 3 10 9×φ18 12×φ18 350 52.2 115.3 φ241 9 1/2 3 10 12×φ18 17×φ16 350 57.7 127.2 φ254 10 3 10 12×φ18 26×φ16 350 61 134.5 φ305 12 3 10 12×φ18 24×φ16 350 79.9 176.1      Changsha Wontech Engineering Machinery Co. LTD, located in Railway Station Road,Ningxiang National Economic Development Zone, Changsha, Hunan, is a high-tech private enterprise, providing complete one-stop service covering product designing, manufacturing, trading and after-sale service.The products include high-air pressure down-the-hole hammers and bits, top hammer tools, shank adapters, couplings, and overburden casing bits.Wontech boasts a team of excellent experts dedicating to designing drilling tools, and also a team of outstanding sales. In the past five years, Wontech has gradually strengthened its brand advantages featured by preeminent talents and its key heating technology.The company embraces the enterprise spirit of "Being Practical, Careful, Honest and Safe " sticks the to concept of development of "Quality Wins Customers, Credibility Creates Benefit , and devoted to providing DTH drilling solutions to our customers with first class products, outstanding credibility and meritorious service.A.Quick response in 24 hours when there are any further inquiries, complaints,testing feedback.later order confirmation etc.B.Online Technical support covering dis-assembly, maintenance, operators training, is always available when customers meet the problems in different applications.C. Quality warranty. Free replacement is offered as long as the hammer is damaged due to our quality problem which is confirmed by our engineer from customer's precise and on-time feedback.D.Routine Visit. To get to know more of the precise needs and the applications of our distributors and large end customers and meantime to keep good relationship with them, our overseas sales managers work very hard to pay a visit to our customers at least one time per year E.Tailored services like OEM,ODM, and special requests covering painting color, logo, packing etc., are also available./* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1