When the Hitachi G12SR4 Angle Grinder was discontinued by Japanese technological conglomerate, Hitachi, I was floored. How could they discontinue such a great and popular piece of engineering and design finery? I was flabbergasted. It was only one of the most popular angle grinders on the market, flagging top lists all around. How does this angle grinder stand out against the dozens of competitors on the market? Well, scroll down to find out!
So a few basics to get down first. What and how do you use an angle grinder? Why would you even use one in fact? Well, if you’re probably looking at this hitachi g12sr4 review, you probably know what you’re going to use it for but in case any beginners are out there, an angle grinder is a power tool that is handheld and use to cut or grind through objects or material using its disc shaped cutter. Nowadays, you don’t have to stick to disk attachments anymore, but we can use a variety of cutters and attachments of all shapes and sizes (sneak peek to the 5 Abrasive Wheels haha).
They can be equipped and powered by powerful electric motors, petrol engines or the most ecofriendly – compressed air. Typically, most are fitted with adjustable guards and a side handle for two handed operation. Common uses of an angle grinder would include: sawing off or removing excess material from objects or structures, in metalworking and construction as well as emergency operations. It is without a doubt that the most important factors when choosing an angle grinder is the size of the disk and the power of the motor that powers it.
- 6.2 Amp motor with 980W of max output power for tough grinding jobs
- Spindle lock for quick and easy disc and accessory changes
- Trigger lock-on for comfortable, continuous operation
- Class leading overload durability for increased tool life and reliability
- Left-mounted slide switch with quick-off feature for added safety
- Removable, forward-canted side handle for improved control and comfort for right and left-handed users
- Compact and lightweight at 4.0 lbs for greater control and maneuverability, especially in overhead applications
- Low-profile gear case to get into the tightest areas
- Small diameter grip for a comfortable hold and reduced fatigue
This is usually directly proportional to the larger the disk, the more power the motor should have. The disc sizes can range from 4 to 12 inches. The smaller the disc the more precision and control you have even though you have less power. This is the norm in pneumatic grinders while the larger and heavier electric grinders are used for more heavy-duty jobs in the workplace.
A few safety precautions must be mentioned, it is a must that protective face shields and body clothing must be word to protect against the sparks, any breakage of the discs etc. They must also never be used without their handles and guard attachments. Don’t go ‘saw’ on this one.
Now, what makes the Hitachi G12SR4 so good? Well, the fact that it is a high-powered beefcake of a machine that can work on complex and heavy-duty jobs is what takes the cake for us. Cut cement, saw through the plywood is Up To you. The ability to handle different wheels and accessories is what makes angle grinders like these so versatile. The world is your oyster. You could probably cut through an oyster.
Specifics of this novel device include:
- 6.2 Amp motor with 980W of max output power for tough grinding jobs- this makes it ideal for jobs that require more power, energy as well as labour, making it an extremely impactful tool for your use.
- Spindle lock for quick and easy disc and accessory changes making it easily accessible and versatile for a variety of its jobs with its quick instalments and adjustments depending on need.
- Trigger lock-on for comfortable, continuous operation so you never have to worry about its parts coming off, letting you work with incredible accuracy and perseverance.
- Class leading overload durability for increased tool life and reliability making it (hopefully!) a life long useful companion.
- Left-mounted slide switch with the quick-off feature for added safety and protection to ensure you learn and maintain yourself and the device well.
- Removable, forward-canted side handle for improved control and comfort for right and left-handed users, again, enhancing the versatility of the tool.
- Compact and lightweight at 4.0 lbs. for greater control and manoeuvrability, especially in overhead applications making it portable, easy to use and more flexible during jobs and in usage.
- Low-profile gear case to get into the tightest areas and nooks and crannies further testifying and showcasing its versatility and ease of use.
- Small diameter grip for a comfortable hold and reduced fatigue so you can use it for as long as you want or need!
Further exploration would include Hitachi’s signature svelte trend with a narrow body that is half die-cast and half plastic. The grinder comes with a nice Hitachi plastic tool case that has plenty of room for spare blades and can store the wheel guard and side handle easily. The kit includes 5 stable grinder wheels that are meant for steel applications, making this the ideal metal worker and craftsman’s tool. These discs that are worth about $10 retail by themselves, are perfect for cutting off bolts, hacking into the galvanized pie, or cleaning up your welds.
The grinder is activated by a side-mounted thumb switch that is very easy to use and accessible. Pushing the switch all the way up automatically locks it in place and allows extended use of the tool without having to keep the switch held throughout making it less physically taxing than other heavy-duty tools of this calibre. One can easily replace the brushes of the G12SR4 just by removing the four screws at the front which hold the plastic shell and the tap screw which is there to hold the housing assembly in place. By pulling it off you can get access directly to the double carbon brushes.
Even though the angle grinder is immensely powerful, the weight and feel of the tool is remarkably light and compact for easy use. The Hitachi angle grinder allows users to easily manipulate the position of the tool and hold it steady while curving around tile and making complex and ornate cuts. The thumb switch continued to be easy to use and manipulate while easily letting us lock it into place with a single, fluid movement. Also, it is an easy tool to use one-handed, that is critical in our practical tile and hardy board applications.
It can easily cut angle iron and rebar without any problem. If you push aggressively the tool starts to see wear. After a while, it will overheat and enter the danger zone which is something you need to keep in mind. At a constant speed and performance, the wheels are always spinning, and it never falters. One drawback of this grinder is that it gets too much heat after 10-20 minutes of use.
If work is not stopped the grinder will burn out so be careful and make sure you give it breaks to maintain its lifespan. As an entry level grinder, the G12SR4 it does a great job doing what she needs to do and its very low price makes it an attractive option for a grinder for easy home and practical jobs for around the house and your neighbourhood as it is quick, safer and accurate for more complex cuts or jobs that need to be done.
It can totally remove the excessive casting fin. You will also be happy to know that if you are looking for something that can give a finish on different metals like bronze, aluminium or steel then, this tool can is the right choice. Furthermore, you can get the great result using it on marble, grind stale and synthetic resin. Also, it is an excellent tool to use to grind welded sections in place if you so desire.
- Spindle lock for quick and easy disc.
- Comes with a nice Hitachi plastic tool case.
- Easy to use and manipulate.
- Trigger lock-on for comfortable, continuous operation.
- Doesn’t heat up.
- Features variable speeds.
- High power tool.
- The on/off switch is not located well.
- Installing it will take time.
The angle grinder really seemed to be a one and done tool which is why it’s an excellent and needed beginners’ tool for any metal or construction worker or handyman extraordinaire which is why this tool suggests itself for those looking to equip themselves for multiple projects around the house. The motor is incontestably powerful and will surely provide great grinding finishes that you want for your different projects. The grinder comes with five abrasive wheels and we have to admit that is a great deal for sure. We found price, performance and ease of use make this an easy pick for one of our cost friendly and efficient picks for an angle grinder.
This concludes the hitachi G12sr4 review. I hope you enjoyed and picked up some important points from it.