Handy Gauge
 

Maybe most of you have one of these...I never really thought about it.
Just arrived today from Amazon..$10
I used it this am and discovered my tire tread is way less than I thought on my dd.

https://www.amazon.com/gp/product/B074KD2D73/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1


http://forums.pelicanparts.com/uploa...1606676531.jpg

Got a penny?

Yeah..I've used that before, but this will give exact depths in inches or mm

No problem..it's good to keep money circulating.

https://www.youtube.com/watch?v=hFuUE567mTU

It's good that it was delivered in one day per Amazon. I opened the package up and the gauge had the battery installed and on. Obviously re-packaged. They did enclose another battery.
For $10...I can't even buy a 6 pack. SmileWavy

Just joshin' you. I have a tread depth gauge I bought in a tire shop. It's a simple push pin set up tho...no battery required.

(edit) Similar to this..

https://shop.advanceautoparts.com/p/slime-tire-tread-depth-gauge-20177/12061410-p?c3ch=PLA&c3nid=12061410-P&adtype=&product_channel=Online&store_code=&msclk id=bfa1beb08f9b14743b7ae1737263473d&utm_source=bin g&utm_medium=cpc&utm_campaign=b_pla_all_tire%2Frep air%2Faccessories_tire%2Frepair_gen_gen_all_pros_a ap_us_all&utm_term=4580634168437997&utm_content=Bi ng_PLA_Tire%20Repair%20%26%20Accessories_Tire%20Re pair_Hardware&gclid=bfa1beb08f9b14743b7ae173726347 3d&gclsrc=3p.ds

I had never considered one before...this one is a push pin also. The battery is just for the digital read-out. :)
I do like how you can get it set against the tread and then zero it out before pushing the pin.

Not sure I’d use this for just tires, but handy for smaller spaces. Cool bit of kit.

I just look for the wear bars on the tires. When they are showing at tread depth, it is time to replace them. I don't think I have ever measured tread depth. It is a pretty simple visual inspection. Like knowing it the tire looks like it low on air pressure.

This^^^