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Due to the narrow transition between handle and blade
The bits are manufactured from S2 steel
and workshops for the precise
It features improved ergonomics
Whittet Higgins PWT-13 Lockwasher Precision Ergonomics Due to the narrow transitionThe Whittet Higgins PWT 13 is a precision bearing lockwasher with precision ground parallel faces that keep the assembly square to the threaded shaft. A keyed inner bore seats on the shaft keyway to prevent rotation, while an external tang bends into a spanner slot of the mating locknut to positively lock the assembly against loosening from vibration, shock, and torque. Designed to the ANSI ABMA 8. 2 1999 specification, the PWT 13 pairs with PT series
