The ultimate boring/pilot bit! These high precisionHSS panel pilot bits are long lasting and perfect for the caravan, star wagons, trailer, coaches, motor home and R.V. industries.Excellent for construction of standard and custom designed wall panels, floor and roof trusses. Perfect for manufacturers of: wood panels, vinyl coated panels, wood panels, sheds, mobile home components and aluminum layered material. The single-flute version cuts fast and produces an acceptable finish.