Montolit FAJ05 3/16" Diamond Drill Bit - Montolit Quality. Crafted for Daily Use.

The Montolit FAJ05 Diamond Drill Bit is engineered for installers who need precise, dependable drilling at small diameters—especially on dense or brittle materials like porcelain and natural stone. The vacuum-brazed diamond edge allows the bit to cut smoothly without excessive pressure, reducing the risk of surface cracks or chipped glaze.

The 3/16" size is especially useful for pilot holes, small anchors, tile trim fasteners, layout reference points, and hardware prep. Because the bit operates effectively wet or dry, installers can use it in tight areas, overhead work, or places where water cooling isn’t practical.

Low vibration and a balanced body help maintain accuracy on vertical tile surfaces, shower walls, and backsplashes. With its clean cutting action and long working life, the FAJ05 is a shop-and-jobsite essential for fine detail work on premium tile surfaces.

Why Tile Pros Choose It

• Ideal for precision tasks: Pilot holes, layout marks, fasteners, and hardware installations.

• Cleaner drilling: Vacuum-brazed diamonds reduce chipping on hard porcelain.

• Wet or dry performance: Flexible for any environment or access condition.

• Low vibration: Increases control, especially on wall tile or polished stone.

• Durable build: Long-lasting performance across repeated professional use.

• Small-diameter accuracy: Creates crisp holes with minimal breakout.