T-shaped slot router bit with 1/4 inch shank and 5/32 inch cutting height. It can produce 5/32 inch deep slots and grooves, suitable for making T-shaped slots and grooves on wood. Ball bearing drill bit for T-shaped work. Suitable for creating T-shaped models, spline teeth, mortise and tenon joints, and similar joinery. Equipped with a 1/4 inch bearing, the cutting depth can be changed by replacing the bearing size. Tungsten steel head for long service life. The head is made of tungsten steel, delivering extended durability. Maximum strength and durability are achieved by silver induction soldering, and a heat resistant coating helps prevent wear and erosion. 45 carbon steel body for stability. The shank is made of 45 carbon steel, providing reduced vibration and higher stability. The bearing rail ensures accurate guidance and stable working, reducing fragmentation. Use scenarios - Create T-shaped slots and grooves in wood for jigs, fixtures, or track systems on workbenches and cabinetry. - Produce T-shaped models, spline teeth, and mortise and tenon joints in furniture and wood projects. - Swap bearings to adjust cutting depth for different materials or groove dimensions.