HSS-CO cobalt drill bit, Straight shank twist drill,specially used in stainless steel processing

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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:

Specifications

1. Offers a complete line of Metal Twist Drill Bits, such as straight shank, taper shank, etc;

2. Process: fully ground;

 

Dimensions

1. Drill diameter - The values indicated in the relevant dimensional standards apply in respect of the diameter of twist drills.

Test point: On the lands at the corners

Testing equipment: micrometer

 

2. Tapering of diameter - The diameter of twist drills usually reduces from the drill tip towards the shank in the area of the flutes.

Test values: The taper on diameter amounts to 0.02 to 0.08mm over a length of 100mm.

Test point: At the outside diameter on the land.

Testing equipment: micrometer and indicating measuring instruments.

 

3. Parallel shank - Tolerance for shank diameter f11, Tolerance for roundness and parallelism 0.02mm for the shank length.

 

4. Length - The tolerance of length for the total length corresponds for the degree of accuracy "very coarse" according to DIN standards. The flute lengths given in the relevant dimensional stands are minimum dimensions.

 

5. Point angle

Test value: σ=118°; σ=135°

Test point: At the cutting edges

Testing equipment: Universal bevel protractor indicating measuring instruments.

 

Materials and hardness

Materials - M2, M35, M42, 9341, 4341, 4241, etc

Hardness - HSS HRC63-66; HSSCo HRC64-68

Test point: On outside diameter on the land or adjacent relieved land.

Test equipment: Hardness Tester.

 

Marking

Twist drills with diameter 3mm and upwards shall be marked with:

1.Diameter;

2.Material: (HSS, HSSCo);

3.Additional and/or differing marking by agreement.

 

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Q:The bathroom hardware should be stainless steel or Aluminum Alloy it?
The preferred stainless steel with good economic condition has the advantages of easy cleaning and durability, and strong toughness
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.
Q:What are the hardware parts of the door?
Handle, hinge, fasteners (bolts, nuts), lock, door stopper, seal, such as cat's eye
Q:Do their own cabinets, cabinets hardware where can I buy?
The general cabinet hardware, materials in city or specialized hardware store to sell. But if you're not common on the market like hardware, cabinets do, they use hardware, are from the big city (Guangzhou, Ji'nan) of the designated manufacturers ordered. If individual purchase sell it, suggest you buy from the Internet.
Q:what Hardware processing order required
Go to the major websites, major platforms, do a good job of thinking business, do a good job in soft Wen promotion, in your intention, customer contact way to stay good! Or save it on one of your networks, a tool that is easier to communicate with, such as QQ or Ali Wangwang, or msn. They are just like you are a guest at home. They often think about things and keep in touch with them. Chat what?. Let them not forget who you are and what you do. This also will be used when they need you, a lot of things or Human effort is the decisive factor. Want to find their customers, in a word, the world cast a net, always have your fish.
Q:What are the detailed classifications of hardware tools?
The general is moving hand, screwdriver, hammer, chisel, inner six angle, sleeve head, Jack, hoist, electric knife, pencil, fork, sawing, file, rivet, etc.
Q:Hardware accessories, hardware is the same?
Hello, I do KINLONG hardware accessories, two is a bit different, hardware accessories are mainly curtain wall windows and so on some hardware accessories, a wide range.
Q:What does bathroom hardware have?
Bathroom hardware accessories, generally refers to the installation in the bathroom, the bathroom wall, for placing or hanging clothes cleaning supplies, towel products, general hardware products, including: single hook, towel bar, double towel bar, cup holder, double cup holder, soap dish, soap, towel, towel ring net frame, dresser clip, toilet brush, towel rack, double shelf, and metal faucet, shower and a series of products, you can see only recommend this brand of bathroom products, the only bathroom is mainly ceramic sanitary ware, bathroom furniture, bathroom accessories and other leading hardware, sanitary products, sanitary ware based on integration the three major functional areas, to meet the individual needs of consumers, and provide real-time design of DIY whole bathroom solutions. Unique bathroom calendar three years of careful planning, spending huge sums of money through the power of e-commerce and the experience of cities throughout the country, for the pursuit of affordable and high quality bathroom consumer demand services.
Q:What does hardware refer to? What's the use?
[hardware] traditional hardware, also known as "hardware", refers to gold, silver, copper, iron, aluminum, five kinds of metal, processed by artificial, can be made into knives, swords and other art or metal devices. Modern society is more widely used in hardware, today's hardware is often used as a metal or copper, iron and other products collectively. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not consumer goods.[hardware use] hardware products, appear in economic life, political life and military activities in every corner. Hardware products of various types, specifications vary, but hardware products in modern life also plays an irreplaceable role in the choice of good hardware fittings, can make many structural parts more safe and convenient to use.
Q:What does the home improvement hardware include? What are your buying skills?
A lot of home improvement hardware, including door pull pages, locks, slide rails, hinge handle, sliding door, rail suspension wheel, etc., these are considered home improvement hardware. Hardware purchase skills are as follows: (1) should be selected and sealed hinge, slide, lock of good performance. When buying and selling, opening and closing, pulling several times, feel its flexibility and convenience. (2) it is advisable to select locks with good flexibility. When you buy, you can plug the key several times to see if the thread is not smooth. The switch is screwed up, whether it saves power or not. (3) choose all kinds of decorative hardware with good appearance. When buying, mainly to see whether the appearance of defects, electroplating gloss, feel smooth and so on. (4) by hand a weigh weight, like products, the heavy weight of products relatively good materials.

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