Need it by Mon. Dec 22nd?
Just order by 10:00 AM PST tomorrow and choose expedited shipping during checkout.
These 1-2-3 blocks are extremely handy for layout and set up work. Matched blocks are hardened and precision ground so all six sides are square to within .0003". These blocks also feature five tapped holes and 18 untapped holes for clamping. Tapped holes are 3/8" - 16. 1" x 2"x 3" overall size. Sold in pairs.