Suitable for wood drilling applications for holes up to 100mm deep. This set includes six Tri-Flute Wood Drill Bits in sizes 13mm, 16mm, 20mm, 22mm, 25mm, and 32mm, each with a 152mm length. The bits feature a Tri-Flute Tapered Design for faster removal of wood chips and less binding, along with three cutting edges for up to 6x faster cutting. Cutting spurs ensure cleaner, faster holes and extended drilling life, while the full screw tip allows for self-feeding. The Quick Change Shank fits standard quick-change extensions and 1/4" (6.35mm) hex bit adapters, preventing spinning. The set comes in a Medium Tough Case that can be connected to other Tough Case units for stacking and locking. This set is compatible with the TSTAK system.