Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Type (Optional) Classical version / Upgrade version / Luxury version, Product function with different saw blades to cut metal / wood / etc., Product name Electric drill to electric saw adapter, Electric drill connecting rod diameter 8mm / 0.3in, Cutting diameter 0-120mm / 0-4.7in, Size 9.4×5.4×15.5cm/3.7×2.1×6.1inch, Color Black / Blue, Quantity (Optional) 3pcs / 9pcs / 15pcs, Clamping diameter of electric drill connecting rod 5-13mm / 0.2-0.5in, Material ABS+metal
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. Coupons for 15Pcs Saw Blade Drill Modified Electric Saw [EU]? Nope, there’re no coupons in Banggood. I can’t tell you if this price is good – not enough records in my database, so I won’t judge.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGGines, BGTACC18, BG589b2e, BGHTT15, BG20236Tool
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was $19.99 though.
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)).