8.5mm Twist / Jobber Drill Bits:

Shop a range of twist and jobber-style drill bits suitable for a variety of everyday and industrial applications. Twist bit is the most common drill bit design, offering clean cuts and high precision on a range of materials. Twist bits are generally available in fixed lengths, the most popular of which are often referred to as Jobber drill bits, due to their suitability for a wide range of standard job types.