Latest update shows that Adjustable Aluminum Alloy Cabinet Hardware Jig Shelf Pin Jig costs $19.99 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Adjustable Aluminum Alloy Cabinet Hardware Jig Shelf Pin Jig with 2 PCS 5mm Drill Bits Woodworking Pocket Hole Punch Locator Drill Guide
Latest price update (UTC time):
Banggood ($19.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Low/high price? Good price! It’s lower than average one ($21.99)!
Link: Banggood product page
Price: $19.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG453680
(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
Here is price history (for all/most countries) for Adjustable Aluminum Alloy Cabinet Hardware Jig Shelf Pin Jig.
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)).