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
Red insulated 16-piece 3/8 inch drive socket set in plastic case

WIHA

Wiha 31491 16 Piece Insulated 3/8" Drive Socket Set

SKU CH-6K9Y-AK3FF

A 16-piece insulated 3/8-inch drive socket set covering SAE and metric sizes from 5/16 to 3/4 inch and 8 to 19 mm in 12-point chrome

  • TypeTarps
  • 16-piece set covers SAE and metric sizes for versatile fastening
  • 12-point sockets grip fasteners from multiple angles for easier engagement
  • Insulated 3/8" drive protects against electrical hazards during live work
  • Chrome finish resists corrosion for long-lasting durability
  • Compact box keeps all 16 sockets organised and portable

Insulated 3/8" Drive Socket Set

The Wiha 31491 set contains sixteen 12-point sockets for 3/8 inch drive tools. It covers both SAE and metric fasteners in a single insulated box. The range spans 5/16 to 3/4 inch and 8 to 19 mm sizes. Every socket carries Wiha insulation for electrical work.

Electricians and hybrid-fleet mechanics

Technicians who service live low-voltage panels or hybrid vehicles will value the insulated rating. The set omits deep or flex sockets, so technicians needing reach into recessed bolts must look elsewhere. It also lacks a ratchet or extensions, requiring separate purchase.

Sixteen-piece 12-point coverage

The box delivers exactly sixteen sockets in 12-point geometry across the listed inch and metric sizes. No deep, flex or impact variants are included. Buyers needing more pieces or different drive profiles should consider other kits.

Highlights

  • 16-piece set covers SAE and metric sizes for versatile fastening
  • 12-point sockets grip fasteners from multiple angles for easier engagement
  • Insulated 3/8" drive protects against electrical hazards during live work
  • Chrome finish resists corrosion for long-lasting durability
  • Compact box keeps all 16 sockets organised and portable

Specifications

BrandWiha
TypeTarps

Questions about this item

Which 3/8" drive ratchet or torque wrench do I need to turn these 12-point sockets?

Any 3/8" square-drive ratchet, breaker bar or torque wrench will engage the 12-point sockets in this 16-piece set.

Can I mix these insulated sockets with my existing non-insulated 3/8" extensions and adaptors?

Yes, the 3/8" drive square on each socket matches standard 3/8" extensions, universal joints and adaptors you already own.

How do I confirm the insulation on each socket is intact before working on live circuits?

Visually inspect the red and yellow insulation layers for cuts, cracks or wear; if the yellow layer shows through the red, replace that socket.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.