DEWALT tool kit in yellow molded case with designated slots. Contains ratchet wrench, sockets, screwdriver handle, bits, extension bars, and adapters for mechanical tasks.
DEWALT socket and ratchet set displayed in front of yellow carrying case. Includes ratchet wrench, screwdriver handle, chrome sockets, extension bars, and bit holders.
DEWALT 50-piece mechanics tool set organized in a yellow case. Includes ratchet wrench, screwdriver handle, sockets, extension bars, adapters, and precision bits.
DEWALT yellow plastic carrying case with black latch and bold DEWALT logo. Rugged design with reinforced corners for storing and transporting tools.
DEWALT tool kit in yellow molded case with designated slots. Contains ratchet wrench, sockets, screwdriver handle, bits, extension bars, and adapters for mechanical tasks.
Get these in hand or get left behind promotional video
DEWALT tool kit in yellow molded case with designated slots. Contains ratchet wrench, sockets, screwdriver handle, bits, extension bars, and adapters for mechanical tasks.
DEWALT socket and ratchet set displayed in front of yellow carrying case. Includes ratchet wrench, screwdriver handle, chrome sockets, extension bars, and bit holders.
DEWALT 50-piece mechanics tool set organized in a yellow case. Includes ratchet wrench, screwdriver handle, sockets, extension bars, adapters, and precision bits.
DEWALT yellow plastic carrying case with black latch and bold DEWALT logo. Rugged design with reinforced corners for storing and transporting tools.
DEWALT tool kit in yellow molded case with designated slots. Contains ratchet wrench, sockets, screwdriver handle, bits, extension bars, and adapters for mechanical tasks.
Get these in hand or get left behind promotional video
DEWALT

DEWALT Mechanics Tool Set DWMT45423 3/8 Inch Drive 50 Piece (72 Tooth Ratchet 5 Degree Arc SAE Metric DirectTorque Socket Automotive Fastening)

In stock
SKU: DWMT45423
$71.99 USD

Description

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DEWALT DWMT45423 50-Piece 3/8" Drive Mechanics Tool Set

The DEWALT DWMT45423 50-piece 3/8-inch drive mechanics tool set tightens and loosens critical mechanical hardware across crowded automotive engine compartments, commercial HVAC systems, and heavy industrial machinery assemblies. Featuring a specialized 72-tooth low-profile teardrop ratchet engineered with a head 20% thinner than standard profiles, this multi-piece socket assortment achieves a narrow 5-degree arc swing to drive fasteners in restricted, tight spaces. Forged from drop-forged chrome vanadium steel with a mirror-polished chrome finish, each 3/8-inch socket integrates DirectTorque technology to maximize surface contact and eliminate fastener corner rounding, providing automotive technicians and equipment maintenance specialists with high torque delivery and ANSI-compliant durability.

Best Used For:

  • Automotive Engine and Drivetrain Service: Accessing spark plugs, intake manifolds, water pumps, and alternator mount brackets in crowded engine compartments.
  • Industrial Machinery and Fleet Maintenance: Servicing hydraulic assemblies, commercial refrigeration compressors, conveyor systems, and factory automation equipment.
  • Mechanical HVAC and Facility Fastening: Driving SAE and metric fasteners, hex fittings, and Torx machine screws across structural support frames and equipment housings.

Key Performance & Safety Features

  • 20% Thinner Low-Profile Head: Slim ratchet head profile provides unobstructed access into narrow gaps and recessed engine clearances.
  • 72-Tooth Fine Gear Mechanism: Delivers a short 5-degree arc swing to turn fasteners smoothly inside confined mechanical workspaces.
  • DirectTorque Contact Geometry: Sockets bear against the flat sides of fasteners rather than the corners to prevent stripping and rounding on worn hardware.
  • Drop-Forged Chrome Vanadium Steel: High-tensile alloy steel construction withstands heavy torsional stress while providing long-term wear resistance.
  • One-Handed Quick-Release Lever: Low-profile directional lever and push-button release allow fast, fluid socket interchanges with one hand.
  • Hard-Stamped Size Markings: Permanent, clear size stampings ensure immediate identification and resist erasure from shop grease and abrasive cleaning solvents.

What's Included

  • (1) 3/8" Drive Low-Profile 72-Tooth Teardrop Ratchet
  • (22) 3/8" Drive 6-Point Sockets (Assorted SAE & Metric Sizes)
  • (1) 3/8" Drive 3-Inch Extension Bar
  • (1) 3/8" Drive 6-Inch Extension Bar
  • (1) 3/8" Drive Spark Plug Socket
  • (1) Multi-Purpose Spinner Handle
  • (1) Specialty Bit Adapter
  • (22) Fastening Driver Bits (Hex, Torx, Slotted, Phillips)
  • (1) Heavy-Duty Compact Blow-Molded Storage Case

Technical Specifications

Manufacturer DEWALT Industrial Tool Co.
Model Part Number DWMT45423
Total Piece Count 50 Pieces
Drive Tang Size 0.375 inches (3/8 in. Square Drive)
Ratchet Gear Tooth Count 72-Tooth Mechanism (5-Degree Arc Swing)
Socket Point Configuration 6-Point DirectTorque Geometry
Measurement Unit Formats Dual SAE (Fractional Inch) & Metric
Tool Construction Material Forged Chrome Vanadium Steel (Cr-V)
Surface Finish Protection Full Polish Chrome Corrosion-Resistant Plating
Quality Standard Compliance Meets or Exceeds ANSI & ASME Specifications
Storage Case Dimensions 16.00 in Length x 12.30 in Width x 2.20 in Height
Total Kit Shipping Weight 5.63 lbs (90.08 oz / 2.55 kg)
Universal Product Code (UPC) 076174454239
Suitable for material type Carbon Steel Bolts, Stainless Fasteners, Brass Fittings, & Spark Plugs

Pro-Tip: When servicing spark plugs deep inside recessed cylinder heads, combine the included 3/8-inch spark plug socket with the 6-inch extension bar; hand-spin the extension first to ensure proper thread alignment before engaging the 72-tooth ratchet for final torquing.