Specification:

* 100% brand new and high quality

*Material Steel

*Hardness 800HV

*Coefficient of thermal expansion (10-6/℃) 11.5±1

*Density (g/cm3) 7.8

*Bending strength (MPa) 2000

*Modulus of Elasticity (104Kgf/mm2) 2.1

* Thermal conductivity 0.13

feature:

-Heat-treated and hardened steel block is super strong.

-High precision, stability, durability and not easy to rust.

-32Pcs/38pcs sets to meet your different choices.

Package includes: 32pcs

1 x 1.005mm block

9 x 1.01-1.09mm block

9 x 1.1-1.9mm block

9 x 1-9mm block

3 x 10 20 30 mm block

1 x 50mm block

1 x box

Package including 38pcs：

1 Block: 1mm

1 Block: 1.005mm

9 blocks: 1.01-1.09mm 0.01 steps

9 Blocks: 1.1-1.9mm 0.1Steps

8 Blocks: 2-9mm 1 steps

10 Blocks: 10-100mm 10 Steps

1 x box