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Uxcell 10pcs Hex Head Wrench Drill Bit 4mm(H4) Metric 1/4 Hex Shank 4 (100mm) Length S3 Steel Magnetic Impact Drivers Screwdriver Bit Industrial Grade Hexagon Electric Drill Bits
The screwdriver bits are made of specially heat-treated S3 steel with high strength and hardness up to HRC58-62(The recognized stable hardness is around HRC60) durable and anti-bending and the surface is black phosphating for enhanced grip and...
$16.99 Free Delivery