When I was updating this page the price was 25.99 USD for Adjustable Circular Auxiliary (in Banggood). You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood (25.99 USD)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. What about the price? My database says that it’s pretty good price, coz average is 27.49 USD.
Link: Banggood product page
Price: 25.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGa2ca02, BG2021bf, BGcafcc6
(these coupons are old, so probably won’t work)
Aliexpress
Click here… to search for ENJOYWOOD Adjustable Circular Auxiliary With Clamp With Carbide Inserts 8-20mm on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for ENJOYWOOD Adjustable Circular Auxiliary With Clamp With Carbide Inserts 8-20mm is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).