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Material: Steel Manufacturing
Type: 4 (diameter) × 60 (total length) × 2.5 (reduced diameter) × 30 (narrow length) × 0 # (small tip size) with magnetic cross
Compatible Models: electric screwdriver mouth diameter of 4mm (such as 800 / 3C electric screwdriver)
4*60*2.5*30*0#

4*60*2.5*20*1#