I have checked all old coupons and price is $61.99 for DOCTORWOOD 600mm Woodworking Scriber Gauge Angle Ruler (in Banggood). Just check coupons out (with price alert and history). Best price?
Adjustable degree 0-70°, Material Aluminum alloy, Length 600mm
Latest coupon code price check (UTC time):
Banggood ($61.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. Price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $54.69)
Link: Banggood product page
Price: $61.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGWT15, BGWDT15, BG20236Tool
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – DOCTORWOOD 600mm Woodworking Scriber Gauge Angle Ruler [EU] ($-3)
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for DOCTORWOOD 600mm Woodworking Scriber Gauge Angle Ruler? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).