Description
• One of a comprehensive range of Premier Hand Tools, suitable for daily professional use.
• High quality S2 steel bits with a zinc phosphate finish, each size in 30 and 75mm lengths.
• Hardened (58-62 HRC) and tempered for added strength.
• Includes 3/8″ and 1/2″Sq drive to 10mm hex Chrome Vanadium steel bit adaptors.
• Contents: TRX-Star* Bits; T20, T25, T30, T40, T45, T50, T55, T60 (1 each 30 and 75mm), Hex Bits; 4, 5, 6, 7, 8, 10, 12mm (1 each 30 and 75mm), Spline Bits; M5, M6, M8, M10, M12 (1 each 30 and 75mm), Drive Adaptors; 3/8″Sq x 10mm Hex, 1/2″Sq x 10mm Hex.
• Supplied in storage case with inclined tray for quick and easy bit selection.
• Lifetime guarantee*.

![Premier TRX-Star*/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 42pc [AK21942P]](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/AK21942P_DFC0313700__98666.1720573399.webp)
![Premier TRX-Star*/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 42pc [AK21942P] - Image 2](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/AK21942P_NO_LID_PIC2_DFC0313712__82322.1720573418.webp)
![Premier TRX-Star*/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 42pc [AK21942P] - Image 3](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/AK21942P_PIC2_DFC0313702__87023.1720573419.webp)
![Premier TRX-Star*/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 42pc [AK21942P] - Image 4](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/AK21942P_STRAIGHT_DFC0313703__84689.1720573420.webp)
![Premier TRX-Star*/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 42pc [AK21942P] - Image 5](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/PHOSPHATE_FINISH_ACT_LOGO_TILE_FINAL_DFC1467352__83944.1720598440.webp)
![Premier TRX-Star*/Hex/Spline Bit Set 3/8" & 1/2"Sq Drive 42pc [AK21942P] - Image 6](https://www.toolpointsolutions.com/wp-content/uploads/2026/09/CHROME_VANADIUM_ACT_LOGO_TILE_DFC1625590__44930.1720610537.webp)


