Straight shank twist drill,specially used in stainless steel processing

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
100 pc
Supply Capability:
100000 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:


1. Offers a complete line of Metal Twist Drill Bits, such as straight shank, taper shank, etc;

2. Process: fully ground;



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.



Twist drills with diameter 3mm and upwards shall be marked with:


2.Material: (HSS, HSSCo);

3.Additional and/or differing marking by agreement.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What are the detailed classifications of hardware tools?
Hardware category: Decoration / lamps / hardware / security / bathroomSpecific categories: lock bit hardware tools hardware cutter blade sawing machine hardware lock scissors glasses box hardware cloth hardware fixture terminal electric tool stamping column pneumatic wrench screwdriver kit hook scaffolding hinge combination tools hand tools casters stainless steel products opener brush screwdriver Paddleball hardware products Hardware Hardware ball mill grinding machine electronic hardware rack hydraulic components of garden tools and precision metal film sawing machine polishing wheel rasp tapping machine drilling machine gun knife pliers hydraulic cylinder hydraulic cylinder barbecue net fluorescent lamp tweezers brush roller screwdriver blade grinding machine reamer electric knife ring seal black wire cloth broom strand paint brush vise rivet gun construction tools Aluminum Alloy ladder storage It is hot melt adhesive gun pneumatic nail tool industrial casters hole hot-air gun hydraulic tools wine bottle opener pliers glass sand rubber spring diamond bit sports leisure goods titanium claws fruit knife automatic spray gun hydraulic tongs hydraulic pickaxe folding ladder joint waterproof casing blowing dust gun glue gun electric winch hook rubber scraper diamond pick aluminum hydraulic hose ladder construction and drilling machine vibration mill butter cigar scissors fork spade skull lace shear shear manual hardware hydraulic wrench alloy tube brake casters no fan power construction fastener pipe machine caster casters bearing domestic window brush knife ladder window scraping high-temperature casters snow brush mower blade diamond thin-wall drill pressure spray nozzle of light metal casters damping caster shovel rechargeable electric clipper transport tool accessories
Q:What does the home improvement hardware include? What are your buying skills?
Consumers should choose copper core, but it should be noted that some of the core is plastic, only in the core of a copper covered with copper core. All copper nickel plated and nickel plated iron, almost the same appearance, but the price is very different, generally copper tapeMute, iron without mute, look at all copper, fine workmanship, iron, rough workmanship. When the ball type lock is installed, the partial core is not in place, and the utility model is easy to be broken in use. Now there is a backhand lock, with the handle lightly lifted and able to lockIt's easy to die, but it's easy to keep the keys in the house.
Q:What kind of goods do you need to open a hardware store?
The hardware store, store the following tools: saws, drill, screwdriver, screws, faucets, locks, pipes, wires, such as pump barrel.
Q:How many kinds of hardware are there in this industry?
Hardware can actually be divided into tools and hardware two categories;The tools below can be subdivided:Manual tool (brush, scissors, pliers, screwdriver, wrench, hammer, file, tap die, pump, etc.) (saw blade, a chainsaw, etc.)Pneumatic tools (pneumatic wrench, pneumatic scissors, drilling, etc.)Electric tools (electric polishing machine, electric drill, electric hammer, electric wrench, electric scissors, air guns and etc.)Auto repair toolsConstruction equipment and toolsGaugeGardening tools and equipmentDiamond toolsAbrasives, abrasive (grinding wheel, grinding head, grinding block, sand paper, Whetstone, polishing wheel, grinding agent, polishing paste, etc.);Hardware subdivided into:Hardware fittings (hook, steel ball, pulley, nozzle, universal wheel, rigging, etc.)Construction hardware (locks, fittings, doors and windows, hardware, etc.)Mechanical hardware (bearings, dies, springs, valves, cutting tools and clamps, pneumatic components, etc.)Daily hardware (knife, scissors, etc.)
Q:There is a round piece of hardware, want to buy online, do not know what the name of the call for help
It should be called the positioning buckle I did, mechanical processing, such as small parts, you'd better buy it is issued, all sorts of strange things, it is easy to make a mistake, but you choose to shop also choose related shops, just like the kitchen and bath monopoly store,
Q:Does hardware affect the tightness of doors and windows?
Wind is one of the major climatic factors in the design of doors and windows. Wind is the motive force of doors and windows deformation, damage, cold air infiltration, rain seepage, and blocking entry into buildings. Therefore, the performance of building doors and windows has the requirements of wind pressure resistance, air tightness and water tightness.Building doors and windows because of the different geographical position, the height of buildings of different factors and the installation of doors and windows position may have positive pressure, negative pressure or positive and negative wind pressure alternation, when subjected to wind pressure is large it may cause serious deformation, broken glass, doors and windows hardware damage, cause the sash fall phenomenon caused by accidents, especially the typhoon area, should pay more attention to high-rise building outside the window due to wind load damage problem.
Q:How to inquire about the price of hardware products? How much is the gross profit of hardware products? Thank you
First of all, you have to understand what kind of hardware products, hardware has many, hardware accessories, hardware molds, and even hardware, furniture are.
Q:What do hardware mainly do?
Hardness testing of stamping partsHardness test of stamping materials, its main purpose is to determine the extent of annealing the sheet metal stamping process is suitable for the purchase will be subsequently the stamping process of different types, different requirements of plate hardness level. The aluminum alloy plate used for stamping processing can be tested by Webster's hardness tester. When the material thickness is greater than 13mm, the hardness tester can be used. The pure aluminum plate or the low hardness aluminum alloy plate shall adopt the Vickers hardness tester.
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 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.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range