Twister Tray & Channel Installation Set 3 Piece Armeg TWT&C3PCSET Includes 1x 17mm Twister Channel Driver, 1x 19mm Twister Channel Driver, and 1x 100mm Impact Rated Roofing Bolt Driver Machined flats allow easy access into the most commonly used size of channel (41mm x 41m) Bored 15mm to accommodate extruding bolt threads. Impact rated for use in an impact driver - perfect for the convenience of single handed driving. Sturdy and reliable materials for long-lasting performance Made in Sheffield using high quality alloy for durability. The Armeg TWT&C3PCSET Twister Tray & Channel Installation Set includes a 17mm and 19mm Twister Channel Driver plus a 100mm Impact Rated Roofing Bolt Driver. Designed for easy handling and durability, these drivers fit 41x41mm and shallower 41x21mm channels. Machined flats provide access to common channel sizes, while the 15mm bore accommodates extruding bolt threads. Impact rated for use with impact drivers, this set enables efficient single-handed operation. Manufactured in Sheffield from high-quality alloy, it meets ISO 691:2005(e) standards for internal hex dimensions, ensuring reliable, long-lasting performance. . Brand Armeg Pieces 1x 100mm Impact Rated Roof Bolt Driver 2x Twister Channel Sockets (17 & 19mm) Guarantee 1 Year Packaging Types Each Product Range Twister