High quality straight shank twist drill bits for malleable iron

High quality straight shank twist drill bits for malleable iron System 1

High quality straight shank twist drill bits for malleable iron

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 pc

Supply Capability:: 100000 pc/month

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*Material: HSS4241, HSS4341, HSS6542(M2), HSS COBALT(M35 Co5%), HSS COBALT(M42 Co8%).

*Bit is constructed of high speed steel for the best combination of strength, heat resistance, and wear resistance

*Application: For drilling steel, cast steel, grey cast iron, malleable iron, sintered metal, low hardness Alloyed materials and stainless steel etc.

*For general use in wood, metal, and plastic

*Manufacturing Process: Ground, Milled, Rolled, Edge Ground.

*135 degree split point ensures a true start and eliminates bit walking

*Finish: Black finish, white finish, Black & White finish, Tin-coated Finish, Amber/Coffee Finish,

Rainbow Corlor Finish.Anodizing, Conversion Coating, Nickel plating, Zinc Plating, Chemical Polishing, Electric Polishing, Mechanical Polishing, Powder Coating, Painting, Glass bead blast, Sand blast, Passivation, Chemical Cleaning and Heat treatment, etc.

*Titanium coating resists corrosion,long life time

* Packing: PVC Pouch, Paper Box, Plastic tube, Metal Box or as percustumer's requirement

* Size: 0.15mm-25.0mm

* Hardness: 61-68 HRC

* Point Angle: 118* Or 135*(Split Point are avallable from 3.0mm)

Q:CNC lathe processing precision hardware, how to choose the grinding wheel?: After selecting the grinding wheel material, select the grit size of the grinding wheel.

Q:I would like to ask the so-called jewelry hardware refers to which hardware, including what?: Hardware refers to jewelry necklaces, rings, bracelets, earrings, gold fifth different local customs in some places is not certain, anklets, in some places is cash, in some places is the mobile phone, notebook computer is in some places

Q:What does hardware include?: Big hardware refers to steel plate, steel bar, flat iron, universal angle iron, trough iron, I-shaped iron and various types of steel materials;

Q:What do you do at a hardware store?: Hardware store work:Is the general classification of the goods placed, something more, like to make a clear mark, the specific classification in accordance with the size, or according to the relevance of the customer to put, sure to smile to say hello, ask what things, the location of their most clearly, if it is to the credit of the billing to the signature, there is do the import accounts.

Q:How to distinguish the advantages and disadvantages of bathroom hardware?: Raw materials: zinc alloy Liepin generally use inferior recycled materials as raw materials, and cut corners to reduce costs, loose structure, light weight, feel giddy. Superior products: general use fine cast pure copper, high-quality zinc alloy or titanium alloy as raw material, tight structure, heavy weight, feel thick. Raw material, YISHION and copper are preferred. The casting and finishing process: the shortage of small Liepin die casting machine and simple machine, pressure, product gross PI surface pores, cracks and surface defects of wire lines, inequality, polishing process rough, simple process. Superior products: the use of large precision computer control die-casting machine tools and digital precision machine tools, rough surface smooth, smooth, no pores, silk defects and other phenomena, grinding and throwing, when the process is rigorous, a wide range of processes. The plating: plating Liepin is thin and uneven, loose structure, poor adhesion, luster, the chrome plated directly in the blank, after a period of time, the surface is easily corroded, wear, blistering and peeling off. The coating thickness is less than 20 microns, the material is easy to be oxidized by air, and the coating surface has many scratches and burrs. Products: in strict accordance with the national standard electroplating technology, using imported raw copper, nickel, chromium and copper after, three plating process, depending on the sense of thick, shiny, long-term use will not wear, corrosion, foaming or peeling,. Compact structure, uniform coating, "" crisp, color surface coating thickness in general more than 30 microns, no scratch coating surface and burr. The accessories Liepin: fasteners made of steel screws, easy to rust, glass products made of low-grade products, uneven thickness, low transparency, visual sense of opacity. Excellent...

Q:Please tell people where can to buy genuine hardware accessories?: To hardware mall, to the regular store. Distribution of various brands of shops.

Q:Does hardware affect the tightness of doors and windows?: The tightness of doors and windows mainly refers to the resistance to wind pressure, air tightness and water tightness.

Q:Hardware accessories, hardware is the same?: It's almost like this, but it's a lot of different kinds

Q:Do you need your own hardware to buy a suit door?: When you buy, the store tells you to include the hardware, so you don't have to buy it yourself. If you buy, the store did not say that this content, usually not equipped with hardware to you, you need to buy your own hardware. It is recommended to buy hardware, so you can choose a better quality, price concessions can be slightly, but in the purchase of the door before the need to buy hardware with a copy of the drawings or samples for reference to store door leaf thickness, the size of the location and position of door lock. General professional stores, good service attitude, professional knowledge, more familiar with, will advance in your purchase when reminded in place.

Q:What kinds of hardware fittings can be divided into?: Hardware accessories can be classified according to standard and non-standard parts. This classification is general, but the general classification is like this, and there are different hardware used in different industries, there are different categories.

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