A closer look at the bit.
Compare common cutting tips, identify a bit by its shape, or choose one for the material you are drilling. The drawings explain the geometry; the recommendations follow documented selection rules.
What are you drilling?
Details that change the answer
No need to fill out a form. Only flag what applies.
Brad-point bit for a clean, accurate wood hole
Will the shank fit my drill?
Bit family alone can't guarantee chuck compatibility. Select your drill interface for a practical check.
Which bit looks like yours?
Compare the working end, not just the spiral. These are detailed visual studies of common cutting-tip families, not a substitute for manufacturer markings or ratings.
What the cutting tip tells you
A drill bit's tip gives useful clues about its intended work, but appearance alone cannot prove its steel grade, carbide quality or rated use. Compare the working end first; then check its markings and the manufacturer's instructions.
Brad-point and Forstner
A brad-point's central spur helps locate a clean hole in wood. Forstner bits use a circular cutting rim for flat-bottom recesses. See the wood drilling guide.
Twist and plastic-ground
HSS twist bits are common for metal and some plastics. Acrylic may need a less aggressive, scraping-edge point to reduce grabbing and cracking. Metal · Plastics.
Masonry and diamond core
Carbide-tipped masonry bits and diamond-abrasive core bits work differently and have distinct drill-mode and wet/dry system requirements. Brick · Porcelain tile.
Glass and specialized materials
Glass type must be verified before choosing a drilling method. Do not drill already tempered glass. Glass guidance and safety limits.
Unsure about the workpiece? Use the material-specific guides for the full explanation and manufacturer citations. The visual guide never overrides a safety stop.