Latest update shows that Aluminium 90 Degree 120x120mm Woodworking Positioning Square costs $7.99 (in Banggood). Just check coupons out (with price alert and history). What is the best price?
Angle 90° right angle, Scale Metric and Inch, Surface treatment Anodized, Quantity 1pc, Brand Drillpro, Material Aluminum Alloy, Size 120x120mm, Application Wood jigs fixing fixture / right angle positioning, Color Red, Thickness 16mm
Latest coupon code price check (UTC time):
Banggood ($7.99)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. But wait a sec… Is it a good price? Well, according to CouponsFromChina database this price is the best in history (4 records).
Link: Banggood product page
Price: $7.99
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BGDRB18, BG937b3a, BG765917, BG842878, BGWT15, BGc8412f, BGa0b557, BGWDT15, BG20236Tool
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Aluminium 90 Degree 120x120mm Woodworking Positioning Square is here.
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)).