Morse Taper Shank hss drill bit/drilling tools for stainless steels

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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:What are the commonly used hardware materials? What are their respective properties?
Hardware, the past is gold, silver, copper, iron, tin, five kinds of metal materials collectively.Now, the hardware products are usually divided into two major categories: big hardware and hardware.Big hardware generally refers to metal plates, pipes, profiles, bars and wire;The hardware mainly includes coating material (such as tin), wire coating (such as Tie Si), a variety of small standard parts (such as fastening screws), non standard parts (such as wood screws) and various gadgets (such as a screwdriver) and so on.
Q:What does "R0.5max" mean in hardware drawing?
The "R0.5max" in the hardware drawing refers to the maximum allowable fillet R0.5.Max:N. maximum; maximumV. maximum; maximum possibleHardware:Traditional hardware, also known as "hardware"". Of five metals: gold, silver, copper, iron, and aluminum. By artificial processing, you can make knives, swords and other art or metal devices. The hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security products. Most hardware products are not final consumer goods.
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: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 does bathroom hardware have?
Bathroom hardware generally refers to the bathroom metal decorations, bathroom hardware pendant, styles, functions of different products prices far apart.A lot of bathroom accessories, but probably include mirror, toothbrush cup, cup holder, soap, tooth, towel rack, towel bar hook, paper rack, clothes hanger and toilet brush box.Tip: hardware definition: traditional hardware, also known as "hardware"". Of five metals: gold, silver, copper, iron, and aluminum. By artificial processing, you can make knives, swords and other art or metal devices. The hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security products. Most hardware products are not final consumer goods.
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:How to distinguish the advantages and disadvantages of bathroom hardware?
Bathroom hardware coatingProducts: in strict accordance with the national standard electroplating technology, using imported raw copper, nickel, chromium and copper after, three plating process, depending on the sense of thick, shiny, long-term use will not wear, corrosion, foaming or peeling,. Compact structure, uniform coating, color face crisp, generally more than 30 micron in thickness, no scratch coating surface and burr.Liepin: plating layer is thin and uneven, loose structure, poor adhesion, luster, the chrome plated directly in the blank, after a period of time, the surface is easily corroded, wear, blistering and peeling off. The coating thickness is less than 20 microns, the material is easy to be oxidized by air, and the coating surface has many scratches and burrs.
Q:What do hardware mainly do?
Plumbing. Tools and local products can be counted as hardware
Q:I would like to ask the so-called jewelry hardware refers to which hardware, including what?
Gold necklaces, rings, bracelets, earrings, I don't know
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.

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