Good quality High efficiency ~ left hand drill bits & HF drill bit

Good quality High efficiency ~ left hand drill bits & HF drill bit System 1

Good quality High efficiency ~ left hand drill bits & HF drill bit

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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 are the laws and regulations of hardware?: Enterprise safety law, consumer rights protection law, national standard (GB), the security rules of the Constitution and so on. There are also some local regulations

Q:Hotel room toilet stainless steel parts, how to maintain?: Bathroom faucet cleaning methodThe tap water scale cleaning method: bathroom faucets are mostly stainless steel, in use after a period of time, the surface gloss can obviously reduce, began to appear in fog or surface scared, seriously affect the appearance.

Q:Hardware stamping materials, know to tell me, the more species, the better, thank you ~!: It is certainly a stamping material of copper, brass, copper, stainless steel, iron, aluminum, carbon steel, spring steel, nickel. We are professionals in the sales of mould materials. Please cooperate with us when we have problems and need to use die steel

Q:What are the commonly used hardware in the customized wardrobe?: Iron: wildebeest used for reinforcement between two pieces of plate. Connecting cabinet screw: the cabinet body connects with the cabinet body, in order to achieve the steady function

Q:What kind of goods do you need to open a hardware store?: There are a lot of ah, tools, parts, screws, bearings, lighting, electrical materials, water cooler, there are some other configurations, such as titanium alloy frame. If you want to shop, you can go to shentop Hotel Web browsing, there are many types of him, should be for you.

Q:What kind of hardware installation is there in order of home decoration?: General bought the house, it is necessary to consider the new home decoration, sometimes is not assured decoration workers careless, sometimes in order to save costs, part of hardware will be to install yourself, if you usually do not work with these objects will be optimistic about the installation essentials, not just random installation, because of the small hardware are connected carefully selected furniture, Huaihua hardware Xiaobian bring you all kinds of hardware installation steps, do not seek the most, only hope for help.

Q:Hardware should be how to buy?: See matching. Bathroom three large sanitary ware in the bathroom occupies the largest position, therefore, can not let sanitary ware to match hardware fittings, but let hardware fittings and sanitary ware match. In the purchase of bathroom hardware accessories, we must consider whether these accessories and purchased sanitary ware match. There are a variety of hardware accessories market, consumers in the choice should pay attention to color, materials and models is consistent with the overall style of the decoration bathroom, if only their own love, it is likely to last pick parts placed in the bathroom will be awkward.

Q:What is the rebate rate for hardware?: You this question is general Oh, specifically to see the screw material (steel, copper) and use, in order to determine its tax rebate rate, 5% is yes.

Q:What kind of hardware do you have?: Plumbing Hardware(1) aluminium plastic pipe (2), three pass (3) pair of silk elbow (4) leak proof valve (5), ball valve (6), eight character valve (7), through valve (8), common floor drain (9), washing machine special floor drain (10), raw rubber tape

Q:What is suitcase hardware? Do you know?: According to the product category specific points have bars, small wheels, mushrooms nails, nail, foot nail, hollow nails, corns, pull head, D buckle, dog buckle, belt buckle, needle, chain, coil, locks, magnetic buttons, all kinds of trademark and decorative hardware. All kinds of hardware are divided according to function or shape. And all kinds of hardware accessories also have a lot of specifications.

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