* 34-tap & die size:
    m3x0.5, m3x0.6, m4x0.7,
    m4x0.75, m5x0.8, m5x0.9,
    m6x0.75, m6x1.0, m7x0.75,
    m7x1.0, m8x1.0, m8x1.25,
    m10x1.25, m10x1.5, m12x1.5
    m12x1.75, 1/8npt27
* 6-hss drills:1.6,2.5,3.2,4.0,4.8,6.5mm
* 5-screw extractors:#1,2,3,4,5
* 1-center punch
* 1-tap wrench(m3-m12)
* 1-"t" type tap wrench
* 1-die stock:25mm
* 1-screw driver
* 1-screw pitch gauge
* M: Carbon steel