High quality straight shank twist drill bits for grey cast iron

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:

*Material: HSS4241, HSS4341, HSS6542(M2), HSS COBALT(M35 Co5%), HSS COBALT(M42 Co8%).


*Bit is constructed of high speed steel for the best combination of strength, heat resistance, and wear resistance


*Application: For drilling steel, cast steel, grey cast iron, malleable iron, sintered metal, low hardness Alloyed materials and stainless steel etc.


*For general use in wood, metal, and plastic


*Manufacturing Process: Ground, Milled, Rolled, Edge Ground.


*135 degree split point ensures a true start and eliminates bit walking


*Finish: Black finish, white finish, Black & White finish, Tin-coated Finish, Amber/Coffee Finish,

Rainbow Corlor Finish.Anodizing, Conversion Coating, Nickel plating, Zinc Plating, Chemical Polishing, Electric Polishing, Mechanical Polishing, Powder Coating, Painting, Glass bead blast, Sand blast, Passivation, Chemical Cleaning and Heat treatment, etc.


*Titanium coating resists corrosion,long life time


* Packing: PVC Pouch, Paper Box, Plastic tube, Metal Box or as percustumer's requirement


* Size: 0.15mm-25.0mm


* Hardness: 61-68 HRC


* Point Angle: 118* Or 135*(Split Point are avallable from 3.0mm)


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

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:The bathroom hardware should be stainless steel or Aluminum Alloy it?
It must be made of stainless steel. It's durable. Although the Aluminum Alloy will not rust, but because aluminum is a very soft, long time will rot.
Q:Please tell people where can to buy genuine hardware accessories?
TX should choose to go to large stores to buy, quality and service to protect some.
Q:What does the home improvement hardware include? What are your buying skills?
nail1, characteristicsSteel nails are the most common type of nails, there is no special tools, mainly used for hand nails of some wooden shelves, etc..There are no special tools for cement nails, mainly in hand nails, cement walls and so on.Special nails with thread, mainly used for nail skirting line, thread structure is not easy to loose.
Q:What is a hardware cooker?
It's a metal ware (a mix of metal and other materials, such as wood and plastic) that belongs to hardware cookware.
Q:What does bathroom hardware have?
Bathroom hardware accessories, generally refers to the installation in the bathroom, the bathroom wall, for placing or hanging clothes cleaning supplies, towel products, general hardware products, including: single hook, towel bar, double towel bar, cup holder, double cup holder, soap dish, soap, towel, towel ring net frame, dresser clip, toilet brush, towel rack, double shelf, and metal faucet, shower and a series of products, you can see only recommend this brand of bathroom products, the only bathroom is mainly ceramic sanitary ware, bathroom furniture, bathroom accessories and other leading hardware, sanitary products, sanitary ware based on integration the three major functional areas, to meet the individual needs of consumers, and provide real-time design of DIY whole bathroom solutions. Unique bathroom calendar three years of careful planning, spending huge sums of money through the power of e-commerce and the experience of cities throughout the country, for the pursuit of affordable and high quality bathroom consumer demand services.
Q:What is suitcase hardware? Do you know?
Luggage hardware is simple, that is, bags and backpacks and other hardware used. Luggage hardware accessories are mostly not final consumer goods
Q:Does hardware include plumbing, building materials?
Plumbing(1) aluminium plastic pipe (2), three pass (3) pair of silk elbow (4) leak proof valve (5), ball valve (6), eight character valve (7), through valve (8), common floor drain (9), washing machine special floor drain (10), raw rubber belt (11) pump valve
Q:What are the laws and regulations of hardware?
Hardware laws and regulations: first, the national quality standards. This is the regulation. The hardware shall conform to the requirements of the regulations in accordance with the regulations. Safety standards, this must be strictly enforced legal norms. 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. The hardware of national quality supervision and testing: China commissioned by the national certification and Accreditation Administration of the national metrology accreditation review group on building materials, through the certification supervision and expansion of the assessment of national building material industry hardware plumbing product quality supervision and testing center. Even Japan, building materials experts review group consults relevant information center, to the scene detection and testing equipment, test items on the part of a field test was carried out, the center of the authorized signatory on-site examination strictly, and the related staff of the theory exam, organize relevant personnel to the discussion. They believe that the test center has established a complete quality management system, organization system operates effectively, have the capability to undertake impartial third party inspection; the quality of personnel, equipment, environmental conditions and test reports have reached the requirements of standards of review.
Q:What are door hardware included?
HingeSharp hinges and dark hinges are the kind of hinge that we usually see when most doors are used, and there is no bounce back. The dark hinge is mostly used for furniture and can be divided into hydraulic, fast loading, frame doors and plain.

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