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●Super hard screwdriver head mady by HSS high alloy steel material, wear/distortion resistance. ●Purifier handle made by aluminum alloy CNC , inside can place components and screws. ●Using on M3 screws and M4 socket screws on the heli. Specification: 3.0mm x1 Phillips screw driver(outer diameter Φ4) x1 ●Weight: Handle:27.9g Phillips head :15g 3mm hexagon head :12.3g
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