star screwdriver

Lengths vary by product: some Torx bit sets list bit lengths around 1 inch, while multi‑bit screwdrivers list longer shank lengths (up to about 2 5/8 inches). Across these listings, bit and shank lengths generally range from roughly 1" to 2 5/8".

Listings label them as impact‑rated or replacement star‑drive bits and emphasize hardened S2 construction, a 6‑lobe profile for reduced cam‑out, and 1/4" shank compatibility for use with sockets and power‑tool attachments.

Tamper‑proof Torx bits use the standard six‑lobe profile plus a central hole (pin) to engage tamper‑resistant fasteners. Listings label these as tamper‑proof or security bits and note the design helps prevent unauthorized removal and reduce cam‑out.

Listings commonly specify S2 steel and heat‑treated SUP10 for mini/precision bits; other mentions include stainless steel components, alloy/steel alloy, and at least one set noted chrome‑vanadium plating.

Multi‑bit screwdrivers list a mix of tip styles — Phillips, slotted/flat, square (Robertson), Torx (star), hex, and specialty bits (tri‑point, pentalobe, U‑type, triangle). Some descriptions also note a 1/4‑inch drive or shaft size.