HSS-CO cobalt drill bit, Straight shank twist drill,specially used in stainless steel processing
- Ref Price:
-
- 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 commonly used hardware materials? What are their respective properties?
- Stainless steel (SUS)SUS301----1/2H, 3/4H and H features: good corrosion resistance, good cold workability, non magnetic in the burn back state, and magnetic after cold working. Application: used for vehicle parts, springs, buildings, hardware, etc..SUS304----1/2H, 3/4H and H characteristics: good corrosion resistance, low temperature strength, good mechanical properties, good work hardening, heat treatment, non hardening, non magnetic. Uses: household appliances, building decoration, vehicle parts, medical instruments, food industry and chemical industry.
- Q: Do their own cabinets, cabinets hardware where can I buy?
- Larger building materials city has a professional hardware office, where the hardware is still relatively complete, you can go and have a look.
- Q: What are the detailed classifications of hardware tools?
- The general is moving hand, screwdriver, hammer, chisel, inner six angle, sleeve head, Jack, hoist, electric knife, pencil, fork, sawing, file, rivet, etc.
- Q: What brand of hardware is better?
- Buy Bathroom Hardware recommended to buy the big brands, of course, in order to avoid unnecessary trouble I suggest you choose those big brands, with the quality of customer service in this regard will be controlled better, like ATGET, a brand of bathroom hardware dily V - O of the two one brand is I trust, with the overall feeling Ya Jie is my home is good, and the Delong Delong, Yatin Yatin, HAVA HAVA, ArgentCrystal ArgentCrystal, elegant, these brands are good brand reputation, are the ten famous network on the china-10 are the latest bathroom hardware accessories
- Q: What kind of hardware installation is there in order of home decoration?
- If the door (door and door): first hinge positioning (or repair groove), temporary installation - positioning lock, remove the lock - processing and installation after formal installation of the door, and installed in the positioning door -- etc.
- 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: What are the hardware parts used in the decoration?
- Door hardware: door lock, hinge, handleCabinet hardware: handle, slide rail, hanging rod, trousers hanging, angle chainOther: hanging rail, drawer lock, bathroom accessories, accessories etc.
- 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: There is a round piece of hardware, want to buy online, do not know what the name of the call for help
- To be exact, this is called a spacer. It is used for fixing bathroom fittings.Huitailong has been established for fifteen years of history, is the national brands with independent intellectual property rights, is one of the main hardware products, sanitary products, intelligent Home Furnishing decorative materials such as the integration of production and marketing enterprises; is in the high-end Home Furnishing decoration materials of independent research and development and production sales efforts, has formed R & D, manufacturing and sales national enterprises; in the domestic first-tier cities have more than and 500 stores, product sales network throughout the country large and medium-sized city; various parts of products are exported to Southeast Asia and europe.
- 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?
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HSS-CO cobalt drill bit, Straight shank twist drill,specially used in stainless steel processing
- 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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