HSS-CO cobalt drill bit, Straight shank twist drill,specially used in stainless steel processing

HSS-CO cobalt drill bit, Straight shank twist drill,specially used in stainless steel processing System 1

HSS-CO cobalt drill bit, 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:Is the hardware store profitable?: Hardware means gold, silver, copper, iron, tin. Later, metal was used to refer to all metals. In fact, a lot of hardware, whatever is money, you look at the hardware electrical market inside the boss is very rich, and the price is basically opaque, so if you do have to make sure

Q:What does the home improvement hardware include? What are your buying skills?: Decoration hardware including what? How to choose and buy? It is a lot of people's troubles. Decoration is a very complicated matter, large building materials, furniture, sanitary ware, small door, door hinge, bath towel, etc. this pendant pumping railSome hardware fittings, which can not be less. When the purchase of hardware, we must choose the good sealing performance of the hinge. Hardware in the home improvement costs about 3%-5%, the proportion is small, but can not be ignored. Hardware according to use functionDivided into ordinary hardware and special hardware. The general hardware set way into the lock, hinge, slide, handle, hanging round, nail, plate bracket, door stopper, hook, touch beads, touch plate pin card, etc.. Special hardware according to the way setDivided into bathroom hardware and kitchen Pendant category. I only introduce common hardware, special hardware to be late.

Q:I would like to ask the so-called jewelry hardware refers to which hardware, including what?: Hardware jewelry does not refer to five gold jewelry but refers to metal jewelry, some local customs refers to five kinds of jewelry, gold is generally wedding gold rings, necklaces, earrings; marriage hardware is gold ring, gold necklace, gold earrings, gold bracelets, gold chains, now not necessarily buy gold jewelry, platinum, platinum can also be other jewelry.

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:What do the hardware stores sell?: Such as 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 doors and hardware accessories. Such as lotus and other hardware, the gold and silver and brass and iron, tin five metal materials, hardware is the mother of industry; the national defense foundation, hardware product material, usually divided into two categories of hardware and hardware. Big hardware includes steel plate, steel, flat iron, steel bar, universal channel iron, I-iron and various types of hardware, building hardware, tin, lock nails, wire, steel wire, steel wire cutting, home hardware, tools etc.. On the nature and use of hardware, iron and steel materials, non ferrous metal materials, machinery parts, transmission equipment, auxiliary tools, working tools, construction hardware, household hardware and other eight categories are to be considered

Q:What's drawing design in a hardware factory?: I have done in the hardware factory mapping, using CAD or proe do, surveying and mapping is the first to return the drawings, in software measurements. Yes, some need your own design, some other factory orders and processing drawings, you have to translate them to your factory standards. Hope to adopt!

Q:What does hardware mean? Big brother, give me a detailed explanation: The widget is made with five kinds of raw materials of metal hardware store to you to see there is to buy the hardware

Q:Does hardware affect the tightness of doors and windows?: Let me put it briefly.The main window is divided into windows, windows and wood windows and other types of.It is made of glass, section bar, hardware, sealing strip and so on. The sealing of doors and windows is made up of all parts, including the quality of the glass, the quality of the profiles, the quality of the sealant (mainly), the quality of the hardware, the quality of the doors and windows.The tightness is mainly related to the sealing strip they use. For example, the common casement window adopts three yuan ethylene propylene sealant strip, while the sliding window adopts the sealed top.

Q:What does a hardware factory do?.: Independent production of various types of hardware products, metal stamping parts, metal batteries, metal springs, metal screws and so on.

Q:Are there any better hardware parts for the glass sliding door?: Could you tell me how thick your glass door is?Hardware accessories should be better, it will be better.

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