We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Insulated torque screwdriver set in red case with bits and handle

WIHA

WIHA 28791 Insulated Torque Screwdriver Set 1/4" 10-50 in-lb 8pc

SKU CH-5FE4-YDYA2

Insulated torque screwdriver set covers 10 to 50 in-lb with eight slotted and Phillips bits for live electrical work

  • Product typeScrewdrivers
  • Insulated for safe work on live circuits
  • Adjustable 10 to 50 in.-lb torque range
  • Chrome-vanadium steel bits resist wear
  • Eight-piece set covers slotted and Phillips needs
  • Six-inch overall length gives good reach

Insulated Torque Set for Electrical Work

The WIHA 28791 set is an 8-piece insulated torque screwdriver kit built for professionals who work on live electrical equipment. It delivers a torque range of 10 to 50 in-lb from a 1/4 in. drive. Each driver measures 6 in. overall and uses Chrome-Vanadium steel bits in slotted and Phillips profiles sized 3 mm, 4 mm and 5.5 mm.

Fits a Technician's Pouch Not a Workbench

The compact 6 in. length lets the drivers sit in a standard tool pouch without needing a dedicated case or bench space. Insulation on every piece removes the requirement for separate protective sleeves when accessing energised panels. The 1/4 in. drive accepts the included specialty bits directly, so no additional bit holders or adapters are required to start work.

Low-Force Operation Reduces Fatigue

The adjustable torque mechanism clicks at the preset value, preventing over-tightening on sensitive terminals without demanding high hand force. Chrome-Vanadium steel resists deformation under repeated cycles, keeping the click point consistent. No external power or calibration equipment is needed for normal daily use.

How it compares

Measured against everything we stock in Screwdrivers, Nut Drivers & Hex Keys, at today’s prices. Recalculated every night.

Price $181.99
Pricier than about 91% of the 415 comparable items (median $11.99).

Specifications

Product
Brand nameWIHA TOOLS
Product typeScrewdrivers

Questions about this item

What is the maximum torque setting before the 1/4" insulated screwdriver clicks?

The adjustable handle clicks at 50 in-lb, which is the upper end of the 10 to 50 in-lb range.

Does the insulated handle stay comfortable during continuous electrical work?

The 6 in overall length and insulated grip are designed for all-day use on live equipment without heat build-up.

Which drive bits must I already own to use the 8-piece set?

The set includes slotted and Phillips bits in 3 mm, 4 mm and 5.5 mm sizes for 1/4" drive, so no extra bits are required.

More in Screwdrivers, Nut Drivers & Hex Keys

Similar items