High quality straight shank twist drill bits for cast steel

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Shanghai
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TT OR LC
Min Order Qty:
100 pc
Supply Capability:
100000 pc/month

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Product Description:

*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)

 

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Q:How do you do the hardware business?
How to communicate with customers in the marketing, there are a lot of communication failures, where and why? In my dictionary, following the so-called communication failure Description: "don't be customer acceptance, or customers do not understand what is said, all invalid. The reason for this communication disorder is that the language situation is too weak, the voice, expression or reading skills are inadequate, the task of making sentences, or lack of interest in communication objects." It is important to build a bridge of trust or goodwill between customers at the first contact with the customer. At the same time, we should first point out the urgency of customer demand for this product, thereby causing customers to buy desire. Almost all salespeople agree that the most difficult part of all sales promotion is communication with customers. In fact, successful communication is difficult because of their different environments and different positions
Q:What are the commonly used hardware materials? What are their respective properties?
Cold rolled steel sheet (SPCC), ----SAE1006, SAE1008Features: smooth finish - good mechanical properties, smooth surfaces with fine abrasive lines. Blunt surface treatment with good mechanical properties, fog, matte finish.Purpose: because it contains a small amount of residual elements, corrosion resistance and excellent, so it is widely used in galvanized or colorOn galvanized steel sheet, suitable for hardware products with special surface requirements.
Q:What does hardware and electrical appliances include?
Machinery equipment, hardware tools, building hardware, mechanical equipment, locks, security, daily hardwareElectronic, electrical, general accessories, sports and leisure, environmental protection facilities, home appliances, kitchen, raw materials
Q:What's the hardware in the wardrobe industry?
The hardware includes a wardrobe door hinge, handle, drawer rails and other structural parts and accessories such as clothes hanging rod: made of Aluminum Alloy materials, high hardness, large bearing surface, anodized, abrasion resistance, cut flower. The circular surface is provided with a plurality of technological lines, which not only have decorative effect, but also play the role of anti-skid. Guide rail: drawer adopts heavy three section rail or three section slide rail, push and pull smooth and silent, bearing capacity is big, can push and pull more than 100 thousand repeatedly. Pull the plate for a towel and other small items, using common backing tracks. Pull basket: cold rolled steel with surface plating, the effect is shiny and smooth. Surface without flow, bump, no yellow, no delamination, no rust, long shelf life. Laminated buckle: embedded panel buckle prevents the board from slipping. Trousers rack: used for stainless steel folding hanging pants, trousers made straight without wrinkles. Shelf: used to display towels, scarves, hats and other small items of life. Plywood: used for displaying ornaments, cosmetics and other daily necessities. Chuanyijing: built-in sliding mirror is an indispensable item dressing.
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:What are the hardware parts used in the decoration?
Door hardware: door lock, hinge, handleCabinet hardware: handle, slide rail, hanging rod, trousers hanging, angle chainOther: hanging rail, drawer lock, bathroom accessories, accessories etc.
Q:Are there any better hardware parts for the glass sliding door?
8MM thick glass door, with good material, hardware fittings, or better, but it is better to open the door
Q:What does bathroom hardware have?
The hardware including bathroom accessories, such as: towel rack, towel ring, towel rack, toothbrush cup, clothes hanger, roll holder, soap box, toilet brush, there is a shower, faucet, belong to the hardware.
Q:What do hardware mainly do?
Hardness test of stamping dieThe main material of the stamping die is die steel (including tool steel and high speed steel), and sometimes carbide is used.Stamping dies usually require high hardness and wear resistance, and heat treatment is essential.
Q:What is the rebate rate for hardware?
According to the 5% tax rebate rate, the income is 170W, according to the vat of 17%, the tax refund amount is =170/1.17*0.05=7.27W

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