The tool is the easy part; the bit or blade decides whether the cut is clean. This collection keeps brad-point and twist bits, impact driver bits, hole saws, circular and reciprocating blades, and abrasives in one place.
Match the bit to the material — brad point for wood, cobalt or HSS for metal, carbide for masonry — and replace dull bits early. A sharp bit needs less pressure and drills straighter.
Read drill bit care for sharpening and storage notes.