Aliexpress
Click here… to search for Power Tools Steel Nails Rivet Tool on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (54.73 USD): BG123F2021
(CouponsFromChina.com tip: just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGAlerabat1
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for Power Tools Steel Nails Rivet Tool.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).