Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 6.35mm Shank Double Guide Bearings Spiral Router Bit (21.99 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (60.68 USD): BGWT15
Coupon (64.25 USD): BGGines
(CouponsFromChina.com tip: you should apply the coupon 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): BG36df96, BG02cf64, BGa0b557, BGc8412f, BG53a38c, BGdc201f, BGWDT15
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 6.35mm Shank Double Guide Bearings Spiral Router Bit (21.99 USD)
Price history and price alert
Here is price history (for all/most countries) for 12.7mm Shank Double Guide Bearings Spiral Router Bit.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).