Hand vs. Electric Torque Screwdrivers: What's Best for Your ...

Which is better&#;a canoe or a raft? A canoe is certainly faster and easier to maneuver. That&#;s gotta be the best, right? Nothing beats fast. On the other hand, rafts are more stable than tippy canoes and are better equipped to carry cargo. So, the real answer is, the best boat for you depends on what you&#;re trying to do with it. The same logic applies to the different types of torque tools. Hand screwdrivers and electric screwdrivers are both useful, but the right type of screwdriver for your business depends on what you&#;re trying to accomplish.

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Assessing the Production Needs of Your Business

Before you consider the different types of torque tools available, it&#;s best to take a close look at the needs of your assembly. Envision your process, then ask yourself the following questions:

• Are you fastening bolts or screws?

• How much torque do you need to deliver?

• How many fasteners do you need to tighten in a day?

• How large is your assembly area?

• Do you need to collect and document detailed assembly data for your product?

On an even more basic level, you need to know what you&#;re fastening and how fast you need to fasten it. If your product has any special needs, these should be taken into consideration as well. Once you&#;ve got this figured out, it&#;s time to look at your options and find the tool that fits your needs.

Choosing Between Hand and Electric Screwdrivers

Your answers to the questions above will help determine the tool that best suits your needs. For instance, if you&#;re fastening bolts, you&#;ll need a wrench. If you&#;re fastening screws, you&#;ll need a screwdriver. That&#;s the easy one. Assuming you&#;re looking for a screwdriver, the next step is to look at the amount of torque you need to apply.

Hand screwdrivers, particularly preset hand screwdrivers, can deliver more torque than electric screwdrivers. After all, heavy-duty electric screwdrivers can deliver almost 90 lbf.in of torque. However, most models are only capable of delivering about half that amount or even a quarter. Preset hand screwdrivers, in contrast, can deliver up to 120 lbf.in. So, for larger screws that need more torque, hand screwdrivers are likely your best option.

Once you know how many fasteners you&#;ll need to tighten in a day and how large your assembly area is, you&#;ll have an idea of how fast you&#;ll need to work to accomplish your production goals. Electric screwdrivers are substantially faster than hand screwdrivers. So, if you&#;re only producing a few items a day, hand screwdrivers will get the job done. If you need to make many products at a rapid pace or fasten many screws on the same product quickly, though, an electric screwdriver is more likely to meet your needs.

In some industries, it&#;s essential to collect and store data on each fastener for quality assurance or regulatory purposes, and often both. Doing so is much simpler with electric screwdrivers as they can be easily augmented with screw counters or linked together as part of a DC control system. Either option allows for a real-time monitoring and collection of data on every fastener. Collecting this data with hand screwdrivers is not nearly as easy. Fasteners can be tested after the fact with a dial screwdriver and their torque values recorded by manual data entry. This method, while possible, is onerous and time-consuming when compared with automated systems.

The final consideration is price. By and large, hand screwdrivers are less expensive than electric screwdrivers. As such, it stands to reason that if hand screwdrivers fit the needs of your production, they will more easily generate a return on your investment. If your assembly could feasibly use either type of screwdriver, then, it makes more financial sense to invest in hand screwdrivers. However, if your production volume is too high or your data collection needs are too rigorous to accomplish by hand, then electric screwdrivers are the right choice.

Related links:
Is a more expensive torque wrench really more accurate?

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The most effective way to decide how to tool your production process is the most simple. Figure out what you need, then choose the tools which best fulfill your requirements. Your knowledge of your product&#;s assembly process will tell you almost everything you need to know. What&#;s the best tool? The one that gets the job done.

At Mountz Inc., we offer a broad range of hand, electric, and pneumatic screwdrivers and wrenches, as well as accessories like screw counters and automated control systems. Each and every one of our products are built to the highest standards of tool-making possible. To see our full line of products,

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But they do make a difference as often the screw heads are easy to damage at higher torques, even if to begin with you are just given the job of dismantling stuff so unscrewing a tight fastener.

For many years the skill of sensibly tightening terminals was something that was learned as an apprentice, etc, so you could reliably make connections that would not undo with vibration or thermal cycling, as well as not leading to damage to the wire and/or cable clamp itself. But with the number of botched installations presenting a fire risk the industry has moved towards the use of torque tools to try and reduce dependency on such skill and to help get better control over results.

Also a torque set is quite a handy way to get a feel for what is correct for 2Nm, etc, but you can probably borrow one for such a trial.

That is much the same as garages have been for last 50+ years, most bolts/nuts are done by hand, but critical ones like cylinder head, water pump, driveshaft, etc, finished with a torque wrench.

Another factor is stuff being poorly done and often damaged on assembly is monkeys using an impact wrench. Except for some very specific tools, NEVER use a power tool on electrical terminals! Most impact drivers will, even at the lowest setting, hammer the faster home to a much higher torque that most can cope with. Typically the only ones likely to survive are going to be M8 or larger studs, etc. A moment's carelessness with my own impact driver (Milwaukee M18FID2) resulted in me shearing a M6 roofing screw when assembling cable try, so I am not joking!

Having said that, my impact driver is a most excellent tool to have (though not the cheapest) for drilling with the hex-shank bits, using the 20mm - 32mm hole saws for glands, etc, and for mechanical assembly/disassembly on larger wood screws or bolts as it really gets the job done quickly.

TL;DR Concentrate on basic hand tools first (as

The only +/- ones I have are bits for my torque screwdriver!But they do make a difference as often the screw heads are easy to damage at higher torques, even if to begin with you are just given the job of dismantling stuff so unscrewing a tight fastener.For many years the skill of sensibly tightening terminals was something that was learned as an apprentice, etc, so you could reliably make connections that would not undo with vibration or thermal cycling, as well as not leading to damage to the wire and/or cable clamp itself. But with the number of botched installations presenting a fire risk the industry has moved towards the use of torque tools to try and reduce dependency on such skill and to help get better control over results.Also a torque set is quite a handy way to get a feel for what is correct for 2Nm, etc, but you can probably borrow one for such a trial.That is much the same as garages have been for last 50+ years, most bolts/nuts are done by hand, but critical ones like cylinder head, water pump, driveshaft, etc, finished with a torque wrench.Another factor is stuff being poorly done and often damaged on assembly is monkeys using an impact wrench. Except for some very specific tools,use a power tool on electrical terminals! Most impact drivers will, even at the lowest setting, hammer the faster home to a much higher torque that most can cope with. Typically the only ones likely to survive are going to be M8 or larger studs, etc. A moment's carelessness with my own impact driver (Milwaukee M18FID2) resulted in me shearing a M6 roofing screw when assembling cable try, so I am not joking!Having said that, my impact driver is a most excellent tool to have (though not the cheapest) for drilling with the hex-shank bits, using the 20mm - 32mm hole saws for glands, etc, and for mechanical assembly/disassembly on larger wood screws or bolts as it really gets the job done quickly.TL;DR Concentrate on basic hand tools first (as @nicebutdim said), then look at some useful power tools for mechanical work and as you get to assembly CU or other stuff with high current terminals then look at a torque set.

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