I am monitoring price for Drill to Electric and it is for 15.99 USD now (in Banggood). You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Latest coupon code price check (UTC time):
Banggood (15.99 USD)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. Is it a low price? According to my database, the average price is 16.49 USD and current price is 15.99 USD, so it’s probably a good price!
Link: Banggood product page
Price: 15.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGd2f208, BG20236Tool, BGGT12
(there’s a little possibility that old coupon will work)
Aliexpress
Click here… to search for Electric Drill to Electric Chain Saw Adapter Attachment on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Electric Drill to Electric Chain Saw Adapter Attachment.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).