A professional product layout of the Klein Tools 32604INS insulated screwdriver, featuring the auto-locking handle with a slim-tip bit installed and four interchangeable insulated bits—Phillips, Slotted, and Square—designed for 1000V electrical safety.
An infographic labeled What’s Included, showcasing the 1000V rated 4-in-1 insulated screwdriver handle alongside a clear visual breakdown of the included bit tips: #2 Phillips, 1/8-inch and 1/4-inch Slotted, and #2 Square.
A technical diagram of the auto-locking collar on the Klein Tools insulated driver, illustrating the mechanical action to push the bit in to lock and slide the collar forward to unlock for rapid, secure bit changes.
A key features graphic highlighting the 1000V shock protection provided by impact and flame-resistant insulation, the extended-reach blade design, and precision-machined slim-tip bits for easier access to tight electrical spaces.
Close-up detail of the ergonomic handle emphasizing the specialized spin cap for improved control during delicate fastening and the integrated in-handle bit storage that securely holds all four interchangeable insulated bits.
Macro shot of the iconic Klein Cushion-Grip handle on the insulated screwdriver, demonstrating the professional-grade rubber overmold designed to provide greater torque and maximum user comfort during electrical work.
A clean product shot of the complete 32604INS 4-in-1 insulated multi-bit set against a white background, highlighting the high-visibility orange insulation and professional-grade construction for industrial and residential electricians.
Klein Tools Manufacturing promotional video
A professional product layout of the Klein Tools 32604INS insulated screwdriver, featuring the auto-locking handle with a slim-tip bit installed and four interchangeable insulated bits—Phillips, Slotted, and Square—designed for 1000V electrical safety.
An infographic labeled What’s Included, showcasing the 1000V rated 4-in-1 insulated screwdriver handle alongside a clear visual breakdown of the included bit tips: #2 Phillips, 1/8-inch and 1/4-inch Slotted, and #2 Square.
A technical diagram of the auto-locking collar on the Klein Tools insulated driver, illustrating the mechanical action to push the bit in to lock and slide the collar forward to unlock for rapid, secure bit changes.
A key features graphic highlighting the 1000V shock protection provided by impact and flame-resistant insulation, the extended-reach blade design, and precision-machined slim-tip bits for easier access to tight electrical spaces.
Close-up detail of the ergonomic handle emphasizing the specialized spin cap for improved control during delicate fastening and the integrated in-handle bit storage that securely holds all four interchangeable insulated bits.
Macro shot of the iconic Klein Cushion-Grip handle on the insulated screwdriver, demonstrating the professional-grade rubber overmold designed to provide greater torque and maximum user comfort during electrical work.
A clean product shot of the complete 32604INS 4-in-1 insulated multi-bit set against a white background, highlighting the high-visibility orange insulation and professional-grade construction for industrial and residential electricians.
Klein Tools Manufacturing promotional video
KLEIN TOOLS

Klein Tools Screwdriver 32604INS 4 in 1 Insulated Multi Bit Driver Set (1000V Rated ASTM F1505 Auto Lock Handle Slim Tip Phillips Slotted Square)

In stock
SKU: 32604INS
$29.98 USD

Description

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Klein Tools 32604INS 4-in-1 Insulated Multi-Bit Screwdriver

The Klein Tools 32604INS is a 4-in-1 insulated multi-bit screwdriver engineered to protect technicians working near energized electrical circuits up to 1,000 Volts AC. Certified to ASTM F1505 and IEC 60900 standards, this multi-bit driver features an auto-locking collar mechanism and four insulated slim-tip bits, including #2 Phillips, #2 Square, 1/4-inch Slotted, and 1/8-inch Slotted profiles. Built with a dual-layer flame- and impact-resistant orange coating, its narrow slim-tip geometry reaches deep-set terminal blocks and recessed breakers without stripping insulation, while the Cushion-Grip™ handle provides high-torque control and onboard bit storage.

Best Used For:

  • Energized Commercial Breaker Maintenance: Torquing breaker screws, neutral bars, and bus connections safely in active 1,000V panels.
  • Recessed Terminal Block Wiring: Reaching tight terminal block screws and narrow relay channels using the precision-machined slim-tip shank.
  • Residential Electrical Service Upgrades: Carrying a compact 4-in-1 driver layout on service pouches to secure Phillips, Slotted, and Square fasteners.

Key Performance & Safety Features

  • 1,000V Certified Insulation: Flame and impact-resistant orange insulating coating meets or exceeds ASTM F1505 and IEC 60900 safety standards.
  • Auto-Locking Bit Collar: Push-in auto-locking mechanism secures slim-tip bits firmly inside the shank and releases instantly with a forward slide.
  • Slim-Tip Precision Geometry: Machined narrow tip profile permits unobstructed entry into tight terminal blocks and recessed breaker terminals.
  • High-Torque Cushion-Grip™ Handle: Soft rubber handle overmold delivers maximum turning force with reduced hand fatigue in greasy conditions.
  • Integrated In-Handle Bit Storage: Onboard compartment holds interchangeable Phillips, Slotted, and Square bits directly inside the handle core.
  • Hardened Steel Metallurgy: Precision-milled bits are forged from hardened steel to provide exact fastener engagement and prevent tip cam-out.

What's Included

  • (1) 1,000V Insulated Auto-Lock Multi-Bit Screwdriver Handle
  • (1) #2 Phillips Insulated Slim-Tip Bit
  • (1) #2 Square Insulated Slim-Tip Bit
  • (1) 1/4" Slotted Insulated Slim-Tip Bit
  • (1) 1/8" Slotted Insulated Slim-Tip Bit

Technical Specifications

Brand Manufacturer Klein Tools®
Model Part Number OEM SKU 32604INS
Working Voltage Insulation Rating 1,000V AC Max (Dielectric Protective Layer)
Dielectric Safety Standards ASTM F1505 and IEC 60900 Certified
Handle Ergonomics Structure Cushion-Grip™ Rubberized Overmold
Shank Length Dimension 4.00 inches (10.2 cm)
Overall Tool Length 8.50 inches (21.6 cm)
Blade Metallurgy Material Hardened Alloy Steel Core with Dielectric Polymer Coating
Bit Storage Mechanism Integrated In-Handle Compartment
Fastener Drive Profiles Included #2 Phillips, #2 Square, 1/4 in Slotted, 1/8 in Slotted
Assembled Net Tool Weight 4.7 oz / 0.29 lbs (133 g)
Global Trade Item Number GTIN 00092644329692

Pro-Tip: Press the slim-tip bit firmly into the collar until you hear the mechanical latch click; giving the bit a light tug verifies it is locked in place before inserting the tool into energized breaker panels.