$18.99 – USB Cordless Rotary Tool Engraving Pen Kit with 49pcs Accessories (Banggood, Aliexpress: USB Cordless Rotary Tool Kit Woodworking Engraving Pen DIY For Jewelry Metal Glass Mini Wireless Drill With Dremel Accessories – D (the best price with coupon)).
According to my DB the lowest price is $18.99 for USB Cordless Rotary Tool Engraving Pen Kit with 49pcs Accessories (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Latest coupon code price check (UTC time):
Banggood ($18.99)
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood. I think you want to know if the price is good. Well, this price is higher than average price ($16.31)
Link: Banggood product page
Price: $18.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BGWDT15
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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 USB Cordless Rotary Tool Engraving Pen Kit with 49pcs Accessories. The lowest price was: $14.99.
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)).