Precise Machinist Set-Up Kit 

1-2-3 Block Set

Tolerence: .001"(squareness per inch).
Dimensions: 1" x 2" x 3".
Hardened to 58-60 Rockwell C.
Matched accuracy withing .0002" per inch.
Includes fitted case.

Jack Stand Set

Up to 1000 lbs.
Range: 2.25" to 3.365"
Jack base diameter: 1.25"
1" and 2" extension bases.
Extension may be combined.

Angle Block Set

Precision ground.
Accuracy; +30 seconds.
All blocks 3" long and .250" thick.
Eachset includes 1º thru 5º blocks in 1º increments and 5º thru 30º blocks in 5º increments as well as 1/4" and 1/2" blocks.
Includes fitted case.

Spacer Blocks

3/4" diameter, 1/4"-28 ID thread.
Ground hardened and tapped.
4 connecting screws included. Accuracy:+.0001"