45# is high quality carbon structural steel, carbon content is 0.42-0.50%, with 610 Mpa tensile strength , and yield point is 360 Mpa;45# steel is widely used in machinery manufacturing, mechanical properties of this steel is very good, so it’s generally used as axial parts.40Cr is alloy structural steel, carbon c...

-What are you trying to pull? Are you trying to pull a shaft out of something, pull something out of a hole or pull something off a shaft? This will help you determine if you need a push-puller, jaw-type puller, slide hammer or one with internal or external-internal adapters.-Determine the reach and spread you need. This will make ...

How To Test A Tool's Quality at the Hardware Store Buying hand tools can be a confusing—and at times a losing—proposition. When faced with aisles full of putty knives, hammers, utility knives, and other toolbox must-haves, it’s tough to know if you’re really getting the best pro...

What are difference between S2 material and CRV material Comparing the two, if the hardness is compared, Cr-V is better. If the tool steel is used, because tool steel generally requires impact resistance, strong torsion, high hardness, low stress, etc., S2 has more advantages.S2...

Where to buy DNT puller set DNT Puller is made by DNT tool factory from Chinese.Up to now, you only can buy DNT Puller from our website:nbdntools.com, or inquiry from mail: info..........com.Because DNT Tools is a factory, and now only accepted wholesale,and offer OEM service f...

40CR Alloy steel Material: GB 40CR Alloy steel(SAE-AISI 5140 steel ) Chemical composition of 40Cr steel rade C Si Mn Cr Ni(≤) Cu(≤) P(≤) S(≤)40Cr 0.37-0.44 0.17-0.37 0.5-0.8 0.8-1.0 0.3 0.03 0.035 0.035Physical property of 40...

What's Different types of pullers and the key features to consider Trying to remove shaft-mounted components without using the right types of puller can be frustrating a...

Pullers DNT's pullers family include two-leg pullers, three-leg pullers, hydraulic pullers, expansion pullers for interiors, pullers for separators and separators, special pullers, hydraulic presses and pullers for damaged screws and stud bolts.Pullers are designed for removal of mech...

What bearing pullers sizes are available? ...

What type of bearing puller should I use? Choosing the right bearing puller for dismounting your bearings is critical. The safety and ease of removing the bearing will depend on the correct bearing puller being selected.In this article, we’ll explain the types of bearing puller availa...

What is about DNT Tools sample agreement Q:What is about DNT Tools sample agreementA: DNT Tools is a 20+ years OEM factory, No stock, So,Only accepted sample order and small MOQ order.And Meanwhile,All our tools is very heavy, there are very expensive about the express cost, So the be...

What Are Pullers Used For? A puller is a tool used to remove parts such as bearings, pulleys or gears from a shaft. They have legs, typically two or three which circle around the back or inside of a part and they also have a forcing screw which centres up against the end of a shaft. T...

How many types of bearing pullers are there? A bearing puller is a tool used to remove bearing sets from a rotating machine shaft or from a blind bearing hole. The most common application is removing a caged set of ball or tapered bearings from a rotating shaft, such as in a car’s tr...

WHAT IS BEARING and BEARINGS attributes? Bearings are mechanical assemblies that consist of rolling elements and usually inner and outer races which are used for rotati...

Car repair:How to Install Rear Wheel Hubs & Bearings The rear wheel bearings are permanently sealed units within the hub and not serviceable on a PT Cruiser. A failure of the hub bearing requires replacement. The hub, however, requires several special tools and a heavy-duty press to r...

Engine Vacuum Leak: Symptoms and Solutions If your vehicle has an engine vacuum leak, the air-fuel ratio in your engine will be higher than 14.7:1, also called a “lean” mixture. This ratio means that there is too much air in your engine, and as a result, the engine will run poorly or ...

How to Replace a Spark Plug in a Car 1. Wait for Your Car Engine to Cool DownFinding a spark plug that fits your vehicle is simple. What I do is go to the spark plugs page on Amazon and enter my vehicle year, make and model into their "filter by vehicle" search.If you skip this step, ...

How to change brake fluid step by step What You'll Need to to Change Brake FluidIn order to change brake fluid, you'll need the following. Note that if you've ever "bled" your brakes to address brake pedal sponginess (an indication compressible air has gotten in) then you already know...

How to Replace Rod Bearings Connecting rod bearings are extremely important components of any engine, whether it's a Toyota or a Ferrari engine. Rod bearings ensure that the rods operate smoothly around the crankshaft on one end, and the piston wrist pins on the other end. Replacing t...

How to test an Ignition Coil on a Car If your car won't start or it hesitates when you crank it, you might have a bad ignition coil. Testing an ignition coil on most cars is pretty easy. No special tools are required, and you don't even have to remove the coil. Just remember to be car...

What are insulated tools? Insulated tools are designed to protect you against injury in the event that you make contact with an energized source. Every insulated tool must be marked with the year it was insulated and an official 1,000-volt rating symbol, which ensures you will be prot...

How to Repair Your Car Brake Brakes are the most essential safety feature of any vehicle, so only fix them yourself if you have the right tools and enough confidence to do the job well. You can learn how to change the brake pads and rotors yourself in no time at all. As with most of t...

How to Replace Pulley Bearing on AlternatorReplacing a pulley bearing on 90 percent of alternators is a fairly benign task, the hardest part typically being the removal of the alternator. Some vehicles feature the alternator on top of the engine, and hence relatively easy to remove. On other models, the alternator is on the bottom of the pulley system for the drive belt, in which case you must lif...

Bearing pullers are used to remove parts such as bearings, gears or pulleys from a shaft.They have legs which circle around the back or inside of a part, and a forcing screw which centres up against the end of the shaft. As the forcing screw is tightened, the arms pull the part towards the end of the shaft.A bearing puller is used to remove bearings, gears or pulleys, which are components that are...

WHAT IS A SILENT BLOCK AND WHY IT HAS TO BE REPLACEDSilent block is a small detail of the car's suspension, which consists of two metal sleeves, inserted one into the other, the gap between which is a rubber insert. Silent blocks are used to connect parts of the automobile suspension, they soften vibrations transmitted from one part to another while driving a car. In addition to the suspension, ru...

Do I have to replace the filter when I exchange the oil?The Car repair shop will let the car owners replace the filter, When they are to change the oil, Why? Must to do?let's to learn the role of oil filter first:The function of the oil filter is to filter the impurities in the oil flowing in the lubricating system. After the engine has been running for a period of time, some impurities will be pr...

How to car body dent repair serious damage for carThe car body is damaged, and the repair plan for different parts of the damage is different. In the editor, I have summarized the repair and repair plan for different damaged parts of the car body for everyone. I hope it will be helpful to everyone.(1) Overall repair plan① When the body is seriously damaged, the overall damage of the body exceeds 3...

Be careful when using a fixed torque electric wrench 1. The diameter of the bolt has a certain influence on the accuracy of the control. In the construction, they are all connected by the same type of screw, and they must be calibrated after a period of use. 2. It should be turned on and idling for 3-5 minutes before work. If the motor sparks loudly, the sound is abnormal, and the torque is unstab...

Use hydraulic wrench to pay attention to a few points Hydraulic wrenches are divided into driving hydraulic wrenches and hollow hydraulic wrenches. Their pollution sources come from three parts: external infestation, internal pollutants and pollutants generated in the hydraulic wrench system, because when using hydraulic wrenches, Pay attention to the following points. 1. Install the hydraulic wre...

What should be done in the correct use of hydraulic wrenches?Hydraulic wrenches are divided into driving hydraulic wrenches and hollow hydraulic wrenches. Their pollution sources come from three parts: external infestation, internal pollutants and pollutants generated in the hydraulic wrench system, because when using hydraulic wrenches, Pay attention to the following points. 1. Install the hy...

Use of puller toolsPuller tools are frequently used tools in mechanical maintenance. It is mainly used to remove the damaged bearing from the shaft along the axial direction. It is mainly composed of rotating handle, screw rod and pull claw. There are two claws and three claws. The main dimensions are the length of the claws, the distance between the claws, and the length of the screw to adapt to ...

What occasions are imported hydraulic wrenches suitable for Which occasions are imported hydraulic wrenches suitable for? There are six major occasions suitable, today I will lead everyone to understand. 1. In the equipment installation and maintenance work of energy, transportation, electric power, machinery, metallurgy, chemical industry, mining and other industries, the installation, disassembl...

Is brake flushing really necessary? If you're like most drivers, you don't think about your brakes until they stop working (and hopefully you're not careening down a mountain road when this happens). But, if you're smart, you'll take good care of your brakes. You'll replace the pads and resurface the rotors as needed. Still, when your mechanic recommends that you get your brake system flushed, do ...

How to Use a One-Man Brake Bleeder Kit One-man brake bleeding is most often accomplished using a hand-held vacuum pump to draw air out of the brake system. While the air is drawn out, new brake fluid is drawn into the system using the pump. Secure the VehicleStep 1Jack the car up using a sturdy jack and secure it on jack stands that are properly rated for the weight of your vehicle. Be sure you ar...

How to Adjust Your Engine Timing There are two types of timing in an engine: cam timing and ignition timing. Cam timing is what determines when the valves open and close with respect to the position of the pistons in their bores. It cannot be adjusted on a stock engine. It is set when the engine is built, aligning them to manufacturer's specs. Cam timing is not connected with or affected by turnin...

How to Change the Valve Seals Without Removing the Head After miles of service, the valve seals in the cylinder head of your vehicle wear out and become brittle. The worn seals cause oil to leak between the valve stem and guide, causing blue-gray smoke to come out of the tail pipe every time you start the engine. On most vehicles, it's possible to replace these valve seals without removing the hea...

The Difference Between Insulated Tools And Regular Hand Tools We review a lot of hand tools, so when insulated hand tools come up, often people don’t understand the significance. Many have asked the question: What is the difference between insulated tools and regular hand tools? Well, a similar question is do I need to use insulated hand tools? If you deal with high voltage live wires, these tools...

How to rebuild the brake caliper piston If the brakes are corroded, most of the time, you can simply take your car for a short spin, and the accumulated rust will be worn off. The action of actuating the brakes a few times can be enough to get them going again. However, for cars over two decades old, that may not be the case. Additionally, there's the brake fluid itself. If you don’t regularly fl...

How To Remove Radiator Hose Clamps There are a few different types of radiator clamps. The most common is the band clamp, which uses a screw to tighten or loosen the slotted clamp. A lot of automobile manufacturers use a crimp-style clamp, which requires removing the radiator hose to remove. Another type of clamp commonly used on imports are wire-crimp clamps, which use a variation of the band and...

How to Remove Crimp Hose Clamps Crimp hose clamps are designed for one-time use, because the act of crimping the clamp permanently deforms it, meaning that the clamp must be destroyed in order to be removed. These clamps have one or more ears on them that are crimped using a special tool to provide strong clamping pressure. They were once used mainly on components that are infrequently replaced, b...