Sign up for BL-123 Precision Steel 1-2-3 Blocks – Pair, Heat-Treated, Case Hardened, 48+ Rockwell – Great For Machining & Setup
If you're serious about machining, you know that good 1-2-3 blocks are non-negotiable.
This pair from BL-123 is heat-treated above 48 Rockwell C and case hardened, so they're tough enough to hold up to daily shop use without losing their edge.
And yeah, they're precision ground with a .0001 to .0003 over-allowance for lapping – so you get a dead-nuts surface every time.
Squareness is held within .0002 per inch on all sides, which means you can trust them for setup, layout, and inspection work.
No wobble, no guesswork.
Just solid, repeatable accuracy that makes your job easier.
We also love the cross-drilling design – it keeps them strong while cutting down on extra weight.
Plus, there are five 3/8-16 tapped holes for clamping, so you can secure them to fixtures or hold down workpieces without any rigging headaches.
Whether you're squaring up a vise, setting up a milling job, or just need a reliable reference block, these are built to deliver.
Related Products
HOMOTEK 4-Pack Round Sliding Closet Door Handles – 2-1/2" Brushed Stainless Steel Flush Pocket Pulls For Barn & Bypass Doors
BTMB Stainless Steel Door Handle Pull Plate – 2-Pack, 11.77" X 3.15", Oval Handle, Rust-Proof For Commercial Or Residential Doors
PATIKIL 7-Inch Leather Drawer Pulls – 4 Pack With Iron Sheet, Light Brown, Includes 18mm Screws For Cabinets & Luggage
