Compatibility usually comes down to shank size and chuck/collet type.

• 1/8 in (3.2 mm): The most common shank for many rotary tools.
• 3/32 in (2.4 mm): Often used for detail or micro tools.

Check your tool’s manual or the collet marking to confirm what it accepts. On item pages, look for the shank size in the specifications. Some tools can use adapters or alternate collets to accept multiple sizes, but it’s best to match shanks directly. Avoid forcing a bit that doesn’t seat fully. For safe use, seat the shank deeply, tighten securely, and stay within the accessory’s rated speed. Results can vary by tool and accessory.

Choose by the material and the task you have in mind.

• Wood shaping/carving: High-speed steel cutters and wood router bits work well for grooves and profiles.
• Metal shaping: Tungsten carbide burrs (single or double cut) handle non‑ferrous and many steels.
• Glass/stone/ceramic: Diamond burrs and glass drilling bits are designed to grind these hard surfaces.
• Wallboard: Drywall cutting bits help with outlet and vent cutouts.
• Small holes: High‑speed steel drill bits are suitable for wood, plastics, and soft metals.

Match the shank size (often 1/8 in). Starting with a variety set can be helpful if you’re new—then add specialty bits as your projects evolve.

Porcelain is hard and brittle, so use cautious technique.

• Bit choice: A diamond glass/porcelain drilling bit is typically used for tile and glass.
• Speed & pressure: Use low to moderate speed and light, steady pressure to reduce cracking.
• Cooling: Keep the area wet to help with heat and dust. Pause periodically.
• Start & support: Place masking tape to prevent walking, start at a slight angle, then level out. Support the tile from behind.
• Safety: Wear eye protection and a dust mask. Avoid hammer or impact modes.

Always follow your tool and accessory instructions. Outcomes can vary with tile thickness, glaze, and tool setup.

They remove material in different ways and suit different materials.

• Tungsten carbide burrs: Have flutes that cut chips. Good for shaping metals, plastics, and wood. Double‑cut flutes can feel smoother and control chatter. They’re not ideal on glass or stone.
• Diamond bits: Use abrasive grit to grind. Best for glass, ceramic, tile, and natural stone. They benefit from water for cooling and dust control. They’re less effective on soft metals or resinous woods, which can load up the surface.

Pick based on your material and finish needs, and match the shank size your tool accepts. Speeds, pressure, and coolant practices can affect results and bit life.

Regular care can help extend accessory life, though wear varies by use.

• After use: Let bits cool, then brush off debris. A soft brass brush works for flutes on carbide burrs.
• Diamond bits: Rinse with warm, soapy water to clear embedded dust; avoid harsh chemicals.
• Resin buildup: For wood pitch on cutters, a mild cleaner or soapy soak can help; dry thoroughly to discourage corrosion.
• Inspection: Replace if flutes are rounded, shanks are bent, or diamond coating looks thin or patchy.
• Storage: Keep bits in a case or organizer to protect the 1/8 in shanks from dings.

Using light pressure and appropriate speeds can also help reduce heat and wear.