Product Name: Thread Retrac Rock Drill Button Bits for Top Hammer Drilling Model NO.: r32, r28, r38, r25, t38, t45, t51, gt60 Condition: New Certification: CE, ISO9001: 2000, API Type: Drill Tools Diameter: 76-1000mm Material: Tungsten Carbide, High Manganese Steel Processing Type: Forging Use: Coal Mining,Quarry Drilling or Well Drilling Transfer: Air/Sea/Express Color: Request Advantage: High Performance Product Name: Down The Hole (DTH) Bit Face Design: Flat;Convex;Concave Inserts Design: Spherical; Ballistic; Parabolic Trademark: PANDA Transport Package: Wooden Box or as Customers Inquire Specification: 76-1000mm Origin: Shandong China HS Code: 82071990 Product Description Product Description:Panda thread button drill bits are made by high quality alloy steel bar and tungsten carbides. Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks. Besides, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.Rock Drill Thread Button Bits is suitable for R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60 rock drill rods use. It have many thread. It's widely used for hard rock(f=8~18) drilling use.1)Thread connection:R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT602)Alloysteel:42CrMo3)Suitablecarbidetips:YK054)Technology:hot-pressingorweldingBefore Official Order, please confirm below informations:(1) Thread Type(2) Standard or Retrac(3) Bit button shape (tip shape)--Spherical or Ballistic(4) Bit face shape--Drop Center, Flat Face, Convex, Concave, etc...PANDADRILL can make all sizes and shapes according to your request!Specification:SizeButton QuantityNormal SkirtRetrac Skirt(Gauge + Front)Skirt Length(mm)Q41-Rφ8*5+φ8*2100mm120mmQ45-Rφ8*6+φ8*3100mm120mmQ48-Rφ10*6+φ8*3100mm120mmQ51-Rφ10*6+φ8*3100mm120mmQ57-T-Rφ10*6+φ9*3110mm130mmQ64- T-Rφ11*6+φ9*4120mm140mmQ76- T-Rφ12*8+φ11*4130mm155mmQ89- T-Rφ12*8+φ12*5140mm170mmQ102-T-Rφ14*8+φ12*6150mm175mmQ115-T-Rφ14*8+φ12*7155mm180mmQ127-T-Rφ16*8+φ12*9160mm190mmFAQ:Q1: Can I have a sample for testing?A:Samples are still to be paid but discounted price can be provided.Q2: Do you have the inspection procedures?A:100% strict inspection and testing for every order before packing.Q3: How can i get the after sale services?A:Free replacement will provide once the problems casued by our product quality.Q4: Can I have a visit to your factory before the order?A: Sure, welcome, here is our address: Yantai, Shandong.CONTACT: