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: How do you do the hardware business?
- I saw slogans such as "customers - your competitors" on a lot of salesman training occasions. Think carefully, is that an accurate point of view? Opponents are used to defeat or destroy. You may think it's honorable on the battlefield, but it's a disaster for you to beat customers in the business world. In fact, the real negotiation is gentle, not murder, customers want to be the winner of a deal. Therefore, you should give full play to the skills of communication with each other, to respect and friendly attitude to face customers, but also to allow customers to fully appreciate your efforts for him. In any transaction, only a win-win situation can be maintained in order to maintain long-term business relations. In fact, this is a simple one
- Q: What are the laws and regulations of hardware?
- Is the hardware must ensure the safe and reliable use, safety accidents caused by quality factors cannot, if the quality safety accidents caused, the producer must undertake the corresponding administrative or criminal liability. The laws in this respect are mainly safety production law, quality law, consumer law, and so on. More general, but more formal.
- Q: How do housekeeping refer to hardware accessories with good or bad?
- Furniture hardware accessories, hinge, track, for example, mainly from the opening and closing (pumping) times, salt fog test, negative re - judge good or bad. But now the hardware of many copycat goods, to be optimistic about the brand; at present, the domestic hardware is doing the best DTC Dongtai, and customer service or product lifetime warranty commitment...
- Q: What does hardware include?
- First of all, "hardware" concept, mainly refers to gold, silver, copper, iron, tin five metal materials collectively.Hardware is the mother of industry; the foundation of national defense and the products of hardware materials are usually divided into two major categories: big hardware and hardware.
- Q: How do hardware stores feature?
- For example, people come to buy plug line I are to help people by good people to buy silk. I have expanding the impact of domestic drilling. Lay a good relationship. Cheaper price. Just when this reputation spread your store guests much.
- Q: I opened a small hardware factory, and I also have a few punch, want to do hardware accessories, and do not know what kind of good to do, good money, beg!
- Small pieces, as long as the amount, you can certainly make money steadily
- Q: What's the hardware in the wardrobe industry?
- Hinge screw handle drawer rail foot stainless steel stainless steel tube for fixing door hinge screws are used to handle the fixed hinge rail for mounting feet for stainless steel drawer cabinets or cabinets increased overhead of stainless steel pipe used for hanging trousers it installed in the cupboard
- 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 do you learn before you sell hardware?
- First of all, what is the hardware materials, hardware classification, such as bathroom hardware, hardware tools, electronic hardware
- Q: What is suitcase hardware? Do you know?
- Luggage hardware is simple, that is, bags and backpacks and other hardware used. Luggage hardware accessories are mostly not final consumer goods
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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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