Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Machifit 2pcs 25x50x75mm 23 Holes Parallel Clamping Block [EU] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (27.59 USD): BGMACHI06
Coupon (29.32 USD): BG5c6e66
Coupon (31.04 USD): BGGines
(CouponsFromChina.com tip: apply it 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): BGad34c8, BGca04ad, BGdbd151, BGherra, Tabby20, BGe3b69f, BGTDL01, BGHID18, BGTACC18
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Machifit 2pcs 25x50x75mm 23 Holes Parallel Clamping Block [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for Machifit 2pcs 25x50x75mm 23 Holes Parallel Clamping Block.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).