I have just checked coupons. The lowest price I could get is 32.99 USD for ENJOYWOOD T1 Woodworking Precision T Ruler 600mm (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Latest price update (UTC time):
Banggood (32.99 USD)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? But wait a sec… Is it a good price? It’s a good price, isn’t it? The average is 36.35 USD.
Link: Banggood product page
Price: 32.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGEWT120, BGc10629, BG1b1d75, BGWDT15, BGa1359e, BG6e5da5
(these coupons are old, so probably won’t work)
Aliexpress
Click here… to search for ENJOYWOOD T1 Woodworking Precision T Ruler 600mm on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for ENJOYWOOD T1 Woodworking Precision T Ruler 600mm is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).