Wiha’s recent Terminator impact-rated screwdriver bits claim to provide “up to 30 times the performance over standard insert and power bits.” This a bold claim, but Wiha backs it up with testing that shows how quickly other bits fails while theirs endures.
Terminator bits feature a bi-material torsion zone that helps prevent failure when the bits are over-torqued.
Although… newer impact drivers now have adjustable torque and speed control settings, which could eliminate the need for tougher bits like these. If you limit the torque on the tool, you wouldn’t need super torsion-resistant bits.
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