Скачать или смотреть Double head screwdriver bit

Model: PH2-SL6 65mm
Materail: S2
Standard: DIN
HRC:60±2

Q:How do i know i need model?
PH2-SL6 65mm; PH2-SL6 100mm.

Little knowledge 1: The higher the hardness of the bit, the better?
Answer: A good bit should be made of S2 material, and the hardness of the bit is controlled by heat treatment. The hardness of the bit is not the harder the more durable. If the hardness is too high, it is easy to chip, and if the hardness is too low, it is easy to slip. The internationally recognized stable hardness is HRC60

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