Good quality High efficiency ~ left hand drill bits & HF drill bit
- Ref Price:
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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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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.
- 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:Please tell people where can to buy genuine hardware accessories?
- TX should choose to go to large stores to buy, quality and service to protect some.
- Q:What's the hardware in the wardrobe industry?
- The wardrobe hardware parts are more and more widely used in furniture. With the advent of panel disassembly and assembly furniture and the rise of self assembly furniture, furniture hardware fittings have become an important part of modern furniture. Furniture hardware accessories can be divided into functional hardware and decorative hardware two types. Functional hardware refers to the hardware parts that can achieve certain functions of furniture, such as connectors, hinges and slipway. We also need to pay attention to the hardware parts. At the time of purchase, first to carefully observe the appearance of the process is rough, and then to see whether the switch is equivalent to several times hand freely; to see if there is no abnormal noise; and the grade of furniture to see is not matched; then hand a weigh weight, like products, the heavy weight of products relative to the said materials better. Try to use a longer history, higher visibility of the manufacturers of products. In addition, decorative hardware accessories, such as handles, and so on, we should consider the furniture and color, texture and coordination issues.
- Q:Hardware should be how to buy?
- See coating. Coating treatment is essential for hardware pendants, which relate to service life, finish, and wear resistance. The good coating is black and shiny, with a sense of moisture, while the inferior coating is dull. The good coating is very smooth, and the inferior coating looks closely and reveals wavy undulations on the surface. The surface is still sunken, must be inferior products. Good coating is wear-resisting, the sample that the businessman puts out in the store is wiped everyday, the surface of good product basically does not see to have Nick, and the product surface that is inferior to can have thickly and thickly scratched.
- Q:Want to know the function and choice of cabinet hardware parts
- Hardware accessories include handle, sink, bowl basket, seasoning basket, rice box, hook, etc., the overall function is placed in these things, you in the choice, should choose to be durable, high temperature, damp proof, waterproof, easy cleaning products, some of the food you will if you put them in the kitchen. The bad things will lead to food hygiene, long-term use of the human body is not good, the installation should also pay attention to their position, this is very important work in the kitchen was very busy, the installation location is not good, is not convenient to use will affect your mood to cook.This is since I do ambry experience, I hope useful to you (* o *).
- Q:What do the hardware stores sell?
- The hardware store, big and small, business scope: water iron, wire and cable, switch socket, hardware tools, electric tools, fan, ventilation equipment, decoration materials, mould parts, motor pumps, all you have to do big strong capital, weak capital can be minor.
- Q:Which part is responsible for leakage of hardware?
- Waterproof warranty of 5 years, 2 years of pipeline, the warranty period of non developers responsibility, if not handled to the local quality supervision departments complaints, but also no words can be on the court, or drag over the warranty period is himself.
- Q:What does hardware and electrical appliances include?
- Traditional hardware, also known as "hardware"". Refers to iron, steel, aluminum and other metal, after forging, rolling, cutting, and so on physical processing made from various metal devices. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods.
- Q:What's drawing design in a hardware factory?
- Hardware factory drawing design is to use CAD or proe to do some mapping and three-dimensional parts of some small parts.
- Q:What is a hardware cooker?
- Cookware, such as metal products (metal and other materials, such as wood and plastic), is part of a hardware cookware category.
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Good quality High efficiency ~ left hand drill bits & HF drill bit
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 100000 pc/month
OKorder Service Pledge
OKorder Financial Service
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