2pcs/set 25-50-75mm Hardened Steel Blocks 0.005" Precision Matched Machinist 123 Milling Tool 23 Holes 1-2-3" block gauge

2pcs/set 25-50-75mm Hardened Steel Blocks 0.005" Precision Matched Machinist 123 Milling Tool 23 Holes 1-2-3" block gauge

Aliexpress UK