Drill bit - DIYWiki - DIY FAQ
2021-4-1u2002·u2002Hexagonal shanked drill bits can be changed by nothing more than pulling one out and slotting another in. This is a real plus for some jobs. There are 2 types of hex shank bit: 1 piece bits are expensive, but effective; 2 piece bits are cheap but the strength of the bit to shank bond is weak, making them only capable of light work
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