Home renovators looking to drill through stone, cement or tile often find themselves advised to buy a masonry bit – but it’s not quite that easy. While masonry bits are designed for drilling harder materials, they come in a variety of lengths, diameters, shapes and materials for use with specific job factors. Choosing the correct masonry drill bit for the job can mean the difference between quick success and overwhelming frustration. Knowing the details about the task at hand enables you to decide what type of masonry bit you need.
Determine the size and length of the hole you need to drill. Masonry bits come in a variety of diameters and lengths for use in a variety of projects.
Identify which type of chuck your drill uses. According to the eReplacementParts website, drills use either SDS/SDS-Plus, SDS Max, or spline drive chucks, and bits made for one type aren't compatible with drills of another type. Check your owner's manual to determine your chuck type.
Decide if you want a 2-flute or 4-flute masonry bit. Both will get the job done, but the newer 4-flute bits -- which have a cross rather than a ridge on their tip -- not only work faster and better, they also get stuck in the masonry less often. However, 4-flute bits cost more money.
Examine the material being drilled. Select a masonry drill bit with a diamond tip if you're cutting into a harder, more brittle ceramic such as glass, porcelain or enamel. The harder abrasive material allows you to cut into those materials faster.