I made a Lag Bolt Hand Crank Tool!

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Toe
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I made a Lag Bolt Hand Crank Tool!

Post by Toe » Thu Oct 11, 2018 9:33 pm

My tool was pretty popular this year so I'm posting it here for your enjoyment.

Electricity can be in short supply at the burn so I devised a lag bolt crank that always works and never breaks.
Purpose: easily and reliably install and remove lag bolts.
Features: essentially no moving parts, no electricity needed, reasonably quick, easy, cheap!
Materials: 3/4 inch socket, bar stock (I used 1/2 inch rebar), optionally bike handlebar or similar tube for handles (loose fit on the crank so it won't get stuck with rust), 1 inch tube or a couple of hooks to hold the lag bolt initially, another 3/4 inch socket.
Tools to build this tool: welder, torch to bend S-crank.
See it in action:

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Ratty
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Re: I made a Lag Bolt Hand Crank Tool!

Post by Ratty » Thu Oct 11, 2018 10:07 pm

It's a speed wrench with an extension.
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spacetime
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Re: I made a Lag Bolt Hand Crank Tool!

Post by spacetime » Thu Oct 11, 2018 10:08 pm

Hey, that’s really cool. I like how simple it is.

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BBadger
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Re: I made a Lag Bolt Hand Crank Tool!

Post by BBadger » Thu Oct 11, 2018 10:21 pm

Nice! That'll drive them in pretty quickly too, and no bending over.
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Canoe
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Re: I made a Lag Bolt Hand Crank Tool!

Post by Canoe » Fri Oct 12, 2018 12:02 am

Would it have enough leverage to do the work on a long and/or thick bolt, and in the soil where the impact drivers start to run out of oomph?
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Re: I made a Lag Bolt Hand Crank Tool!

Post by Kenshiro » Fri Oct 12, 2018 2:50 am

Cool work I like it

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ygmir
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Re: I made a Lag Bolt Hand Crank Tool!

Post by ygmir » Fri Oct 12, 2018 7:30 am

very nice! good hack, and you could make the "hook" part longer if you needed more leverage.
nothing better than a simple, easy thing a person can make on their own and not need electricity....
well done!
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tatonka
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Re: I made a Lag Bolt Hand Crank Tool!

Post by tatonka » Fri Oct 12, 2018 10:03 am

groovy
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Captain Goddammit
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Re: I made a Lag Bolt Hand Crank Tool!

Post by Captain Goddammit » Fri Oct 12, 2018 5:44 pm

If your impact runs out of oomph driving lags into playa you’ve got a very weak impact, probably a 1/4” drive thingy.

If you want to crank them in by hand (???) Ratty is right, that’s called a speed wrench and they have existed for eons. You don’t have to fab your own if you haven’t got a welder or torch, you can just get a speed wrench, some extensions if you want, and sockets to fit.
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TT120
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Re: I made a Lag Bolt Hand Crank Tool!

Post by TT120 » Fri Oct 12, 2018 6:34 pm

That first stage stabilizer thing is pretty cool. Keeps the lag straight while getting it started.
Always good to have a backup plan when you're on the Playa.
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FIGJAM
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Re: I made a Lag Bolt Hand Crank Tool!

Post by FIGJAM » Fri Oct 12, 2018 7:09 pm

That one looks like it would have more leverage than a regular speed wrench.
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maladroit
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Re: I made a Lag Bolt Hand Crank Tool!

Post by maladroit » Fri Oct 12, 2018 9:09 pm

It looks like it has more leverage than a normal speed wrench, but you probably don't need more leverage.

I used a T-wrench and 30" extension this year, instead of bringing power tools. It was so easy to screw them into the playa that it was boring. A regular speed wrench would have done the trick.

Great option for 10 or fewer lag screws. A full camp of screws would benefit from a power setup.

Toe
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Re: I made a Lag Bolt Hand Crank Tool!

Post by Toe » Sun Oct 14, 2018 3:49 pm

This thing will drive bigger bolts for sure. I've found that smaller/regular impact drivers tend to get pretty bogged down after about 9 inches. This eats the battery.

There's plenty of torque with the crank tool. In fact the lever arms are a bit too wide and I punch myself in the bicep.

Yes, this is pretty much a speed wrench, except it's optimized for the playa.

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Re: I made a Lag Bolt Hand Crank Tool!

Post by DoctorIknow » Sun Oct 14, 2018 7:27 pm

Very clever.
I've tried a speed wrench with 18" lag screws and it was no fun at all. I ended up using a Horror Freight 25" breaker bar (not practical for the job as I angle my lags) for the last 6 inches, and thought "if only someone would make a speed wrench where diameter of the circle my hand would travel would be about 24"....and here it is.

GOOD JOB and good "maker" type video.

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unjonharley
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Re: I made a Lag Bolt Hand Crank Tool!

Post by unjonharley » Sat Oct 20, 2018 10:00 am

Good show ..
I'm the contraptioneer your mother warned you about.

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Captain Goddammit
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Re: I made a Lag Bolt Hand Crank Tool!

Post by Captain Goddammit » Sat Oct 20, 2018 11:06 am

Unjonharley IS a crank tool... :)
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unjonharley
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Re: I made a Lag Bolt Hand Crank Tool!

Post by unjonharley » Sun Oct 21, 2018 7:55 am

Will use it on the Cap.
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maladroit
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Re: I made a Lag Bolt Hand Crank Tool!

Post by maladroit » Sun Oct 21, 2018 9:27 pm

Lag screws don't work in loose soil.

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