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Wiha Tools 31817 hex socket bit, 3/8 inch drive, alloy steel, chrome finish

Wiha Tools

Wiha Tools 31817 hand socket 1/2 in tip 3/8 in drive

SKU CH-V8TH-8VCWK

A 3/8 inch drive hex socket bit with a 1/2 inch tip for hex screws, made from alloy steel

  • TypeSocket Bits
  • MaterialHAWA
  • 1/2 in hex tip fits standard SAE fasteners
  • 3/8 in drive works with common ratchets
  • Chrome vanadium alloy resists wear
  • 3 7/64 in overall length reaches tight spots
  • Insert length 1 11/32 in suits deep bolts

Socket Bit for Hex Fasteners

The Wiha Tools 31817 is a socket bit designed for driving SAE hex screws. It features a 1/2 inch hex tip and a 3/8 inch square drive. The tool is made from alloy steel and has an overall length of 3 7/64 inches with a standard socket depth.

Fits Standard 3/8 Inch Drive Tools

This socket bit connects directly to any 3/8 inch drive ratchet or breaker bar. Its 1/2 inch hex tip engages hex fasteners without needing a separate bit holder. The one-piece design keeps the profile short for access in tighter spaces.

Replaces Separate Bit and Holder Sets

Builders who currently use a bit holder with insert bits gain a more rigid connection and less wobble. The replaceable insert is not available on this model, so the entire bit is replaced when the tip wears. It is not suited for Torx or spline fasteners.

Highlights

  • 1/2 in hex tip fits standard SAE fasteners
  • 3/8 in drive works with common ratchets
  • Chrome vanadium alloy resists wear
  • 3 7/64 in overall length reaches tight spots
  • Insert length 1 11/32 in suits deep bolts

Specifications

BrandWiha Tools
TypeSocket Bits
MaterialHAWA

Questions about this item

How deep is the 1/2 in hex socket before the bit bottoms out?

The socket depth is standard, with an insert length of 1 11/32 in and an overall length of 3 7/64 in, so the hex tip engages fully within that range.

Does the chrome vanadium steel get hot or slip after hours of continuous fastening?

The alloy steel construction is designed for hand-tool torque, not powered impact, so it stays cool and holds the 3/8 in drive without rounding under normal all-day manual use.

Will this bit work with my existing 3/8 in drive ratchet and extension set?

Yes, the 3/8 in square drive fits any standard 3/8 in drive ratchet, breaker bar or extension you already own — no adapter required.

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