Chrome Vanadium 6150 steel bits hardened to 52-53 HRC and tempered for added strength. Set includes 3/8"" and 1/2""Sq drive to 10mm hex Chrome Vanadium steel bit adaptors. Supplied in storage case with inclined tray for quick and easy bit selection. * Manufactured from Chrome Vanadium 6150 steel. * Long and short ribe, spline, hex and security TRX-Star* bits. * 3/8"" and 1/2""Sq drive to 10mm hex adaptors. * Convenient high-impact storage case presents bits at an angle for easy selection. * Contents: Security TRX-Star* Bits; T20H, T25H, T30H, T40H, T45H, T50H, T55H, T60H (1 each 30 and 75mm), Hex Bits; 4, 5, 6, 7, 8, 10, 12mm (1 each 30 and 75mm), Ribe Bits; M5, M6, M7, M8, M10, M12, M14 (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. * Lifetime guarantee*. * Model No. AK21956 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2024-11-09 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2024-12-10 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2025-02-09 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2025-02-18 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2025-09-12 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2026-06-11 https://elecena.pl/product/27198175/sealey-ak21956-ribe-spline-hex-security-trx-star-bit-set-56pc 2026-07-04