Open molded carrying case displaying the Klein 66033 set with six color-coded coated 12-point impact sockets from 3/8 to 1-1/8 inches.
Diagram detailing 12 SAE sizes across 6 single-ended sockets, high-visibility protective plastic coatings, and 12-point high-torque design.
Perspective view of six Klein plastic-coated impact sockets stored in a molded hard-shell case to highlight size organization.
Orange-coated Klein 7/8 x 11/16-inch 12-point impact socket displaying its 1/2-inch square drive base and protective plastic coating.
Closed Klein storage case positioned above six color-coded coaxial sockets covering 12 SAE dimensions from 3/8 to 1-1/8 inch.
Direct top view looking into a yellow 12-point coated socket showing internal wall clearances for both square and hex nuts.
Top-down view of six color-coded Klein impact sockets organized inside a molded case showing dual-size markings on each slot base.
Lineman in high-voltage gloves using a blue 3/4 x 9/16-inch coated impact socket on a power tool to fasten overhead wooden cross-arm bolts.
Utility technician in safety gloves mounting an orange-coated 7/8 x 11/16-inch coaxial socket onto a 1/2-inch square impact wrench anvil.
Klein 66033 6-piece coated socket kit arranged on a workbench beside a 1/2-inch power impact wrench and leather utility gloves.
Lineman carrying a cordless impact wrench fitted with an orange Klein 7/8 x 11/16-inch coated coaxial socket.
Open molded carrying case displaying the Klein 66033 set with six color-coded coated 12-point impact sockets from 3/8 to 1-1/8 inches.
Diagram detailing 12 SAE sizes across 6 single-ended sockets, high-visibility protective plastic coatings, and 12-point high-torque design.
Perspective view of six Klein plastic-coated impact sockets stored in a molded hard-shell case to highlight size organization.
Orange-coated Klein 7/8 x 11/16-inch 12-point impact socket displaying its 1/2-inch square drive base and protective plastic coating.
Closed Klein storage case positioned above six color-coded coaxial sockets covering 12 SAE dimensions from 3/8 to 1-1/8 inch.
Direct top view looking into a yellow 12-point coated socket showing internal wall clearances for both square and hex nuts.
Top-down view of six color-coded Klein impact sockets organized inside a molded case showing dual-size markings on each slot base.
Lineman in high-voltage gloves using a blue 3/4 x 9/16-inch coated impact socket on a power tool to fasten overhead wooden cross-arm bolts.
Utility technician in safety gloves mounting an orange-coated 7/8 x 11/16-inch coaxial socket onto a 1/2-inch square impact wrench anvil.
Klein 66033 6-piece coated socket kit arranged on a workbench beside a 1/2-inch power impact wrench and leather utility gloves.
Lineman carrying a cordless impact wrench fitted with an orange Klein 7/8 x 11/16-inch coated coaxial socket.
KLEIN TOOLS

Klein Tools Coated Impact Socket Set 66033 6 Piece 12 Point SAE (1/2 Square Drive 4140 Steel Coaxial Hardware Installation Kit)

Only 2 left
SKU: 66033
$229.95 USD

Description

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Klein Tools 66033 6-Piece Coated Coaxial 12-Point Impact Socket Set

The Klein Tools 66033 6-Piece Coated Impact Socket Set consolidates twelve primary imperial hex dimensions across six dual-ended sockets engineered for electrical distribution line maintenance and structural utility construction. Forged from heat-treated 4140 alloy steel, this 3.46 lb (1.57 kg) ASME B107.2 certified set delivers a 20-percent weight reduction compared to traditional impact sets while incorporating protective anti-scratch plastic coatings over each socket body. Compatible with standard 1/2-inch square drive power impact wrenches, each tool incorporates internal spring-loaded coaxial socket walls that enable overhead linemen and utility contractors to transition hands-free between 12 SAE fastener sizes ranging from 3/8-inch to 1-1/8-inch without removing gloves or detaching drive components.

Best Used For:

  • Utility Pole Line Hardware Installation: Driving and removing cross-arm mounting bolts, pole steps, and transformer bracket hardware without changing socket tools aloft.
  • High-Torque Square & Hex Fastening: Seating quickly over 4-point square nuts and 6-point hex bolt heads using versatile, easy-positioning 12-point socket geometry.
  • Severe Environmental Power Tool Use: Protecting socket surfaces against jobsite abrasion, moisture, and chemical corrosion during continuous power impact wrench operations.

Key Performance & Safety Features

  • 12 SAE Sizes in 6 Coaxial Sockets: Covers 1/2"x3/8", 5/8"x7/16", 3/4"x9/16", 7/8"x11/16", 1"x13/16", and 1-1/8"x15/16" sizes within six dual-ended tools.
  • Hands-Free Spring-Loaded Action: Coaxial inner socket sleeve retracts under forward pressure to instantly engage larger hex sizes without manual adjustment.
  • 20-Percent Weight Reduction Design: Lightweight structural profile reduces fatigue and bucket truck payload compared to standard impact socket sets.
  • Durable Protective Plastic Coating: High-visibility color-coded outer shell shields tool bodies from scratches, impact gouges, and rust while speeding size identification.
  • Transverse Cross-Hole Safety Retention: Cross-hole pin alignment holds sockets locked firmly onto impact wrench drive anvils under severe rotational vibration.
  • Forged 4140 Alloy Steel Metallurgy: Premium heat-treated steel construction meets ASME B107.2 quality standards to withstand high rotational shock.

What's Included

  • (1) Klein Tools 1/2" x 3/8" Coated Coaxial 12-Point Impact Socket
  • (1) Klein Tools 5/8" x 7/16" Coated Coaxial 12-Point Impact Socket
  • (1) Klein Tools 3/4" x 9/16" Coated Coaxial 12-Point Impact Socket
  • (1) Klein Tools 7/8" x 11/16" Coated Coaxial 12-Point Impact Socket
  • (1) Klein Tools 1" x 13/16" Coated Coaxial 12-Point Impact Socket
  • (1) Klein Tools 1-1/8" x 15/16" Coated Coaxial 12-Point Impact Socket
  • (1) Hard-Shell Storage Carrying Case

Technical Specifications

Brand Manufacturer Klein Tools®
Model Part Number OEM SKU 66033
Tool Classification System 6-Piece Coated Coaxial 12-Point Impact Socket Set
Core Metallurgy Material Forged Heat-Treated 4140 Alloy Steel
Protective Outer Finish High-Visibility Color-Coded Anti-Scratch Plastic Coating
Primary Input Drive Interface 1/2 inch Square Drive Anvil
Integrated SAE Socket Sizes 1-1/8x15/16'', 1x13/16'', 7/8x11/16'', 3/4x9/16'', 5/8x7/16'', 1/2x3/8''
Socket Point Profile Geometry 12-Point Deep Well Universal Profile
Fastener Safety Retention Transverse Cross-Hole Detent Pin Retention
Manufacturing Quality Standards ASME B107.2 Compliant
Specialized Feature Capabilities Coaxial Hands-Free Spring Adjustment & 20% Lighter Design
Overall Unit Dimensions 9.5 inches L x 5.5 inches W x 3.0 inches H (24.1 x 14.0 x 7.6 cm)
High-Voltage Insulated Frame No (Uninsulated Coating - do not use on energized electrical circuits)
Total Piece Count 6 Impact Sockets + Storage Carrying Case
Assembled Net Package Weight 3.46 lb (1.57 kg)
Global Trade Item Number GTIN 00092644652448

Pro-Tip: To drive the smaller inner hex size on any socket, position the socket squarely over the fastener and apply steady forward pressure. The inner sleeve compresses back automatically; easing forward pressure lets the outer socket wall take over for larger hardware.