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Westward 54TL74 3/8 inch drive hex socket bit metric 4.5 mm tip

Westward

Westward 54TL74 3/8 in Drive Hex Socket Bit Metric 4.5 mm Tip

SKU CH-BQV3-T21BE

A 3/8-inch drive metric hex socket bit with a 4.5 mm tip and 1 3/4 in overall length, built to ASME B18.3.2M-1979 standards

  • Typesocket
  • 3/8 in drive fits common ratchets
  • Metric 4.5 mm tip matches exact fastener size
  • 1 3/4 in overall length reaches confined spaces
  • ASME B18.3.2M-1979 standard ensures reliable fit
  • New condition guarantees full factory performance

Professional 3/8 in Drive Hex Socket Bit

The Westward 54TL74 is a metric hex socket bit with a 4.5 mm tip and 3/8 in square drive. It suits mechanics and technicians who need a precise fit on 4.5 mm fasteners during assembly or maintenance work. The 1 3/4 in overall length provides standard reach for general-purpose applications.

ASME B18.3.2M-1979 Standard Compliance

Conformance to ASME B18.3.2M-1979 ensures the bit geometry matches industry specifications for 4.5 mm hex fasteners. This reduces the risk of rounding bolt heads and improves torque transfer during tightening or loosening. The standardised profile allows interchangeable use with other compliant tools.

Durable Construction for Daily Workshop Use

The six-point socket bit design distributes force across flat surfaces rather than corners, preserving both the tool and the fastener. A 3/4 in insert length supports secure engagement in ratchets or extensions. California Proposition 65 notices apply to this product.

Highlights

  • 3/8 in drive fits common ratchets
  • Metric 4.5 mm tip matches exact fastener size
  • 1 3/4 in overall length reaches confined spaces
  • ASME B18.3.2M-1979 standard ensures reliable fit
  • New condition guarantees full factory performance

Specifications

BrandWESTWARD
Typesocket

Questions about this item

Will the 4.5 mm hex tip wear enough to need replacement?

The 4.5 mm hex tip is machined to ASME B18.3.2M-1979 tolerances; replace the bit only when the corners round enough to slip in the fastener.

What stops me from torquing a stubborn bolt with this 3/8 in drive bit socket?

The 1 3/4 in overall length limits leverage, so the bit or the fastener will yield before the drive socket itself fails.

Does the steel heat up during a long day of fastening?

Normal hand-tool use generates negligible heat; the socket remains cool enough to handle continuously.

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