Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Drillpro DP-WD3 2Pcs Woodworking Precision Clamping Square [EU] (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG200423, 6GSGIT, 00c906, WG122003, BGb2fe13, BGGines, Tabby20, BGWT15, BGa0b557, BGc8412f, BGWDT15, BG20236Tool
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Drillpro DP-WD3 2Pcs Woodworking Precision Clamping Square [EU] (-3 USD)
Price history and price alert
Price history (for all/most countries) for Drillpro DP-WD3 2Pcs Woodworking Precision Clamping Square is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).