Fully Ground Sds Shank Twist Drill Bits for wood working
Use:Marble,Granite,Masonry,Stone
Our SDS drill bits are machined from chrome steel fitted with carbide insert brazed at a very high temperature to withstand severe heating when drilling hard materials.
* L-shaped flute profile improves dust discharge. Sand blasted surface. Other industrial surface finish available.
DIN338 (Stub DIN1897, Long DIN340, Extra Long DIN1869,
Employing high quality alloy steel for drilling body and YG carbide alloy for drilling tip, and in combination with various types of electric hammer. The drill is one of the most efficient tools suitably and widely used for hole drilling in hard materials like concrete/brick in construction & installation in industries. Fully Ground Sds Shank Twist Drill Bits for wood working,Hss SDS Shank Twist Drill,Straight Shank Twist Drills,SDS Shank Twist Drill Changzhou Bomitools Co.,Ltd. , https://www.bomitools.com
Working Length (mm):Custom
Finish:Other
SDS Drill Bit:Carbide Tipped SDS Drill Bit
Material:Carbide Tipped SDS Drill Bit
Reduced Shank are Available)
Jobber Length (Stub Screw Machine Length, Long Taper Length, Airctraft Extensoin,
Extra Long , Silver & Deming 1/2" Reduced Shank are Available)
0.2-30MM 1/16"-31/64",A-Z,1#-60#
Size
Point Type
118 Degree Regular Point,135 Degree Split Point, Pilot Point are Available
Shank Type
SDS Shank,Straight Shank,Hex Shank, Tri-Flats Shank, Double R Hex Shank, Reduced
Shank,Threaded Hex Shank are Available
Helix Angle
Regular Spiral Type N (Slow Spiral Type H, Fast Spiral Type Ware Available)
Wall paint spread 10 times
In recent years, the home improvement market has become increasingly prosperous. To prevent individual companies from reducing production costs, strict implementation of national mandatory standards and the use of cheap raw materials or cutting corners to produce goods have led to unsafe products flowing into the market and damaging consumers. The rights and interests.
Recently, the City Consumer Association conducted a multi-brand comparative test in the first quarter on the quality of interior wall coatings in Changchun City. The test results show that the qualified rate of the sample inspection is 97.1%, and the main reason of the unqualified sample is that “free formaldehyde is not up to standardâ€.
Wall paint spreads nearly 10 times
With the approaching of the May Day holiday, the traditional decoration season is approaching. Many citizens have already prepared the refitting schedule already prepared and started the preparatory stage. The interior decoration of a house is an indispensable link.
In some home building materials markets, it was found that in only one franchise store, more than ten different wall paints could be found. If you add other franchise stores, a wall paint that can be selected by people in a building materials market can be as many as hundreds. Species. Among them, the difference between various wall paints is very different. From less than 100 yuan to over 1,000 yuan, the spread can reach 10 times.
A brand of wall paint sales personnel introduced, "Our home wall paint price ranging from 170 to 896 yuan, the main difference is that the function is different. A little better product, can cover fine cracks, scrub resistance, anti-mildew, and antibacterial Affordable, it is simply environmental protection and formaldehyde-free."
In the face of a wide variety of interior wall paint markets, people can not help but ask, is the quality of the interior wall paint on the market really reliable? Yesterday, the reporter learned from the city Consumer Association that in order to understand the quality of the interior wall paint market in Changchun City, A few days ago, Changchun City Consumer Association conducted a multi-brand comparison test.
Only one sample failed
According to reports, the samples of this comparative test were purchased by the city's consumer associations at random in the city's relatively large building materials market and specialty stores. The staff purchased a total of 35 samples of interior wall paints from 23 sales counters and stores. Among them, there are 7 joint ventures and 20 domestic enterprises.
From the analysis of comparative test results, of the 35 samples of single-wall paints, 34 samples were found to meet the country's limit standards. They are qualified samples and the qualification rate is 97.1%. There is one sample whose index exceeds the national limited standard and is unqualified sample ("Yaju high-grade wall paint" produced by Pompeitz Construction Coatings Co., Ltd., Foshan, Guangdong Province, production date or batch number: 12DS02/120324).
"Free Formaldehyde" Causes Death
Jiuzheng Building Materials Network understands that in this comparative test, the main reason for the unqualified sample inspection was that the product's free formaldehyde was not up to the standard. According to reports, the free formaldehyde in the interior wall paint is mainly derived from synthetic resin emulsions and anti-mould agents, etc. It can ensure the chemical stability of the paint during production and transportation and prolong the storage time of the paint.
The main reason for the non-compliance of free formaldehyde is that the formaldehyde of free formaldehyde will be released into the environment as the coating dries out.
It is worth noting that if the internal wall paint free formaldehyde indicators purchased by consumers exceed the standard, indoor air pollution may be easily caused. When the concentration is high, nausea, vomiting, cough, chest tightness, wheezing, emphysema, and even death may be caused. The qualified free formaldehyde content of the coating is ≤100 mg/kg.
In the sampling process, the “Yaju High-grade Wall Paint†produced by Pompeitz Building Coating Co., Ltd. of Foshan City, Guangdong Province, had a free formaldehyde content of 106 mg/kg, which was 1.06 times the national standard limit.
City Consumers Association staff said that from the results of comparative tests, the city's circulation of interior paint in line with the industry standard rate is relatively high, ready to decorate the public can rest assured that the choice.
Selecting the interior wall paint to look at the qualification of the enterprise
As an important decorative material, interior wall coatings are closely related to the personal safety protection of consumers. In this regard, the Consumers Association issued a consumer warning to remind consumers to pay attention to the following points in the purchase:
First of all, you should go to a regular mall or specialty store that has legitimate business qualifications and credibility. At the same time, it is necessary to purchase products that meet the "GB18582-2008 Requirements for the Limitation of Harmful Substances in Interior Decoration Materials for Interior Decoration Materials" and obtain environmental certification marks. Pay attention to checking if there is a production unit, a factory name, a site, and a product certification, etc., and learn more about the performance and validity period of the product labeling. It is best to purchase products that have passed ISO14001 and ISO9000 certification, because the quality of these products is relatively stable.
In addition, pay attention to check the product quality inspection report. The test report has standards for the detection results of VOC, free formaldehyde and heavy metal content. At the same time, it should be observed whether the packaging of goods has been damaged or bulging. This phenomenon cannot be purchased.
Finally, pay attention to the business to ask for valid consumer vouchers (invoices or credit cards, etc.) in case of consumer disputes as a basis for rights protection.