Draper Expert HSS Metric Tap Drill Bit

The 8.5mm Draper Expert HSS Metric Tap Drill Bit is designed for drilling pilot holes before using 10 x 1.5 metric taps. Measuring 8.5 x 117mm overall, this larger diameter drill bit is ideal for heavy-duty applications where M10 threads are required. The substantial size makes it perfect for structural work, heavy machinery maintenance, and fabrication projects requiring robust threaded connections. This professional-grade drill bit delivers the precise hole diameter essential for successful M10 tapping operations, ensuring clean thread formation and maximum holding strength. The high speed steel construction provides excellent wear resistance, making it suitable for demanding workshop environments where reliability is paramount.