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Black case holding eighteen hex bit sockets in metric and SAE sizes

VEVOR

VEVOR 18-Piece 3/8" Drive Hex Bit Socket Set S2 & Cr-V Steel Metric SAE Black Case

SKU CH-TKQX-Y3X6Y

An 18-piece 3/8" drive hex bit socket set covering metric and SAE sizes in a black PE case

  • TypeOther Appliances
  • Rustproof durability from S2 alloy and chrome-plated Cr-V steel
  • 18-piece set covers metric 3-10mm and SAE 1/8-3/8 inch
  • Chamfered edges with rounded contact points ease insertion and reduce wear
  • Bits hardened to 56-62 HRC, sockets to 38-42 HRC for strength
  • Compact black PE case at 252x146x60mm keeps bits organised

18-Piece 3/8" Drive Hex Bit Socket Set

This 18-piece set combines metric and SAE hex bit sockets on a 3/8 inch drive for automotive and general mechanical work. Bits are made from S2 alloy steel hardened to 56-62 HRC, while sockets use CRV 50BV30 steel at 38-42 HRC. A chamfered edge design with rounded triangular contact points helps smooth insertion and reduces fastener wear.

Mechanics needing both metric

The set includes ten metric sizes from 3 mm to 10 mm and eight SAE sizes from 1/8 inch to 3/8 inch, covering common fastener ranges. Builders who require larger drive sizes, impact-rated sockets or a ratchet included in the kit should look at other options. The PE storage case measures 252 x 146 x 60 mm and weighs 1.72 kg for portable organisation.

S2 bits handle high torque on stubborn fasteners

The 56-62 HRC hardness gives the bits strong resistance to rounding and breakage under heavy use. Sockets at 38-42 HRC provide sufficient strength for hand-tool applications but are not rated for impact drivers. The chamfered geometry protects both the bit and the fastener head during repeated insertion and removal cycles.

Highlights

  • Rustproof durability from S2 alloy and chrome-plated Cr-V steel
  • 18-piece set covers metric 3-10mm and SAE 1/8-3/8 inch
  • Chamfered edges with rounded contact points ease insertion and reduce wear
  • Bits hardened to 56-62 HRC, sockets to 38-42 HRC for strength
  • Compact black PE case at 252x146x60mm keeps bits organised

Specifications

TypeOther Appliances

Questions about this item

Does this 3/8" drive hex bit socket set require a specific ratchet or breaker bar to operate?

Any standard 3/8" drive ratchet, breaker bar, or torque wrench will engage the square drive on these sockets. The set includes 18 bit sockets covering metric sizes from 3 mm to 10 mm and SAE sizes from 1/8" to 3/8".

Can I mix these S2 alloy steel bits with my older chrome-vanadium sockets without fit issues?

Yes. Each bit socket is manufactured to standard 3/8" drive dimensions, so they interchange freely with existing Cr-V or other brand sockets. The bits are 56–62 HRC hardness; the socket bodies are 38–42 HRC.

How can I verify the bits are correctly hardened after I start using them?

The bits are heat-treated to 56–62 HRC and the socket bodies to 38–42 HRC. Under normal use they resist rounding and show no deformation on fastener flats; visible wear or rounding would indicate a hardness problem.

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