REVIEW SNAPSHOT®by PowerReviews
(based on 2 reviews)
Reviewed by 2 customers
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Drill bit set
(1 of 1 customers found this review helpful)
Comments about 21-Piece Thunderbolt Black Oxide Drill Bit Set:
I've used these for drilling in wood, aluminum, PVC, soft steel & MDF. None have broken and all remain sharp. Bits work with very little walking on startup. The larger bits are designed with the 3-flat secure grip shaft to prevent chuck slipping when they bind in the material.