• Straight shank twist drill,specially used in stainless steel processing System 1
  • Straight shank twist drill,specially used in stainless steel processing System 2
  • Straight shank twist drill,specially used in stainless steel processing System 3
Straight shank twist drill,specially used in stainless steel processing

Straight shank twist drill,specially used in stainless steel processing

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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 bathroom hardware have?
Bathroom hardware generally refers to the bathroom metal decorations, bathroom hardware pendant brand, style, function of different products prices far apart. Bathroom accessories as a result of frequent use, product updates soon, belong to consumables, in addition, the appearance looks like exquisite art, easy to attract consumption. For the future development of the bathroom hardware industry, entrepreneurs are locked in the "optimistic", "electronic commerce" and "energy saving and environmental protection" three key words.
Q: What does hardware refer to? What's the use?
Hardware refers to gold, silver, copper, iron, tin, of course, now there are other hardware, such as stainless steel, aluminum alloy and other common metals. Use: to create a spare parts, furniture, cutting tools and other materials.
Q: What hardware fittings are needed for the glass curtain wall project?
If it is a hidden frame curtain wall, so the glass will use glass block, glass block fixing method depending on the column and the beam form is generally M6 self tapping screws fixed and M6 stainless steel bolts, stainless steel bolt with a nut a bomb. If it is a plain frame curtain wall, there will be no such item.
Q: Do their own cabinets, cabinets hardware where can I buy?
Cabinet hanging yards, preferably hidden style. Handle should be rich, general building materials city is not rich enough, hinge, better. Foot, the kind of adjustable, engineering plastics can. Materials such as fire boards
Q: What are the laws and regulations of hardware?
There are two main parts.One is the national quality standard. This is the regulation. The hardware shall conform to the requirements of the regulations in accordance with the regulations.Another is the national security standards, this is the strict implementation of the legal norms.
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: 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 Hardware processing order required
Hello! Individuals want to contract hardware processing business, through relatives, friends or colleagues in many ways to find. You can also take the initiative to contact the business, through the processing of hardware related projects of the company, enterprises, self-employed and so on, from the contract part of the project to do. Start from small business, make more friends, each doing a business, seriously do a good job, quality and quantity, according to the completion of the task of the project period, and strive to establish a sign. In the course of time, your sign has, the business volume will be more and more big, the business circle will also be more and more big, the acquaintance colleague friend will also be more and more, your order naturally more and more.
Q: what is the Hardware classification?
Building hardware (yuan Ding wire welding and so on) decoration hardware (handle hinge bolt lock) tools (hand tools, electric tools and measuring tools, pneumatic tools) alloy cutter NC cutter head whatBuy a hardware manual, do not understand it?
Q: What are door hardware included?
Layering (copper, aluminum, PVC)Any of various metal and non-metallic fittings installed on the door of a building. Play a supporting role when the door is open and closed. The surface is usually plated or coated, and has the characteristics of firmness, durability, flexibility, economy, beauty and so on.

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