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Japan YAMAWA spiral screw tap tap M4X0.7 imported titanium stainless steel precision P M4*0.7

Japan YAMAWA spiral screw tap tap M4X0.7 imported titanium stainless steel precision P M4*0.7

discount 70% in 2018-09-23 to 2018-09-25
price: USD$ 26.60
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Baby involvement:Good stuff is crazy
Single order full500elementFree shippingMailing area: Guangdong, Taiwan, Hongkong, MacaoAutomatically change postage after taking
Baby involvement:Many concessions Activity time: 2017-10-1717:49-2017-12-1617:49
Single order full10pieceFree shippingNational parcel postAutomatically change postage after taking

Please read the following information carefully before deciding whether to buy it or not:

We don't increase credibility or increase sales. We base ourselves on quality and service. So please patronize the discount shop customers to buy the company's products, think the quality and service meet your requirements, please give high praise, deficiencies also hope you give correction, we will correct in time, thank you!

We solemnly promise to buy the products of our company as follows:

1.1. if you buy the product, due to quality or other reasons, or need to return, there is no reason, unused products,We accept ten days no reason to return (but you need to bear the return shipping charges, we do not know), so make a slander, harassment and other acts, please rest assured!
1.2. we offer free tapping for bottom, speed of the pieces of material all technical support services, if you purchase a product to accept our technical support after will not solve the problem, a full refund of unused products.

1.3. we always believe that all buyers are good buyers of integrity, so if there is a few or not the following sincere interference, we will not accept:

1.3.1. we only accept the return of unused products, such as the purchase of all the finished products (such as the purchase of 10 wire tapping and all use, and then request returns), we do not accept returns.

The following is a detailed description of baby:

The difference between the spiral wire tapping and the ordinary hand wire tapping is that the groove of the ordinary hand wire attack is linear, while the spiral wire attack is spiral. When the screw thread is used to attack the tooth, the iron filings can be easily discharged from the hole by the spiral rotation of the spiral groove, so as to avoid the residual iron or the blockage in the groove, and cause the broken edge of the wire tapping and breaking, so that the life of the wire tapping can be increased and the thread with the highest precision can be cut out. Spiral wire tapping is suitable for cutting high toughness materials, but not suitable for fine chips such as cast iron.
HC-SP has a spiral groove of 35 degrees, which is most suitable for tapping holes with sticky material and plastic material, such as medium carbon steel and high carbon steel.
N-SP has a spiral groove of 40 degrees, which is suitable for processing medium carbon steel.

The characteristics of TiN coating are:
* improve the surface hardness and wear resistance increase
* reduce friction coefficient
* anti bonding
* improve heat resistance
These characteristics can completely achieve the purpose of the surface treatment of cutting tools mentioned in this section. Surface nitriding treatment has also been shown to improve the surface hardness of the tool, but the film hardness of TiN is higher. For 2000HV, almost 3 times the hardness of the high speed steel. Compared with other nitrides and carbides, the thermal conductivity and thermal expansion coefficient of TiN are close to that of high speed steel, so the adhesion strength of HSS is higher than that of hss.
The friction coefficient of TiN coating to nickel is only 50% of that of high speed steel to nickel.
3-3 scope of application
The advantages of TiN coating, silk attack have nitriding and oxidation of both therefore, good performance of soft material and hard material has the broad applicability of the general structure, rolling steel, stainless steel and easy to produce adhesion, high hardness, the tool wear large quenched and tempered steel, alloy structural steel, cutting the effect of alloy tool steel has good.
3-4 cutting performance
In order to investigate the relationship between the TiN coating and the tap life, will be part of the cutting edge inclination angle without any surface treatment, the oxidation of TiN coating, three processing hardening stainless steel SUS630. The cutting material is easy to produce bonding, while the hardness is high (45HRC), requiring the tool has good resistance to adhesion and wear resistance.
The test shows that the lifetime of wire attack is 3 times that of oxidation treatment without oxidation, and the TiN coating is 3 times of that of oxidation treatment. In the case of processing SS400 steel, the life of TiN coated wire is 3 times as long as that of the oxidized wire.

Brand: YAMAWA spiral wire attack


Material: HSS-E (high speed steel containing cobalt)

Standard: metric / us

Eat in: 2.5 teeth

Surface treatment: None

Precision class: YAMAWAP class

Applied materials:Stainless steel, as well as high hardness, large tool wear, Quenched and tempered steel, alloy structural steel, alloy tool steel and so on, all have good cutting effect.

About chromatic aberration:

All the goods in this shop are mostly in kind, so please feel free to buy them. Network sales can not avoid color difference, because in different colors, lights, display under the picture, will cause different color difference problem, so please can not accept any color difference buyers carefully consider, color difference problem, will not be used as the basis for return. All of our commodity brands are authentic, pro can rest assured to buy. If you have any other questions, consult first.

About size:

Different models of different brand accessories are also some not good dimensions in general please contact to avoid false delivery

On the issue of return

It is the quality of the goods, shall be promptly sent to us, we will give the true receipt check swap. Returned goods,. Do not accept payment in any form! Do not accept non negotiation, apply for refund! Most of the goods are covered with the company's official seal, with the store's personal signature returned goods must also have this standard

In the following cases, the freight is charged by our shop:

Wrong, leak, quality problems returned

The following conditions by the guests themselves from the freight:

After receiving the goods, found the size is not suitable. Contact customer service and agree to change the size or other style for you.

For non quality goods returned by buyer, buyer shall bear the freight before shipment;

It must be emphasized that..:

When you pick up the parcel, you must check in front of the courier, then sign, the number is not right, or quality problems can be denied. Once the receipt, the consequences are not responsible for Oh!