Hitachi Tools Lists Hardened Taps for Internal Threading of Hardened Materials
The new products include "EpochSuperHardTap" for 50-60 HRC materials and "EpochSuperTap" for 35-50 HRC materials. The former improves the discharge of the chips by improving the cross-sectional shape. The latter achieves stable machining by controlling the packing of the chips during reverse rotation.
Both taps increase the breakage resistance by increasing the diameter of the die shank. Extends life by using high hardness material processing coatings.
The screw driver is a common tool used to turn the screw to make it in place. It usually has a thin wedge head, which can be inserted into the slot or notch of the screw head.
There are mainly one character (minus sign) and cross (plus sign). There are also common hexagon screw drivers, including two kinds of hexagon and hexagon. Each screw driver has different specifications and can be customized.
According to different head types, screwdrivers can be divided into one character, cross, meter character, star (computer), square head, hexagon head, Y-shaped head and so on. One character and cross are the most commonly used in our life, such as installation and maintenance. It can be said that as long as there are screws, screwdrivers will be used.
Hexagonal head is not used much, commonly used in the hexagonal wrench, such as some machines a lot of screws are with hexagonal hole, convenient for multi angle force. We don't see many big ones. Small ones are often used to repair mobile phones, hard disks, notebooks and so on. We call small screwdrivers clock batch. We often use star T6, T8, cross pH0, ph00 and so on.
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