The Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set is displayed open with its custom Pick-and-Click storage case. The dual-purpose fastening kit features an assortment of color-coded S2 steel bits arranged alongside a precision driver handle, with a larger standard magnetic driver handle and loose bits placed in the foreground.
A top-down view of the Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set inside its organized storage case with a clear lid. The compact fastener driver kit securely stores both the precision and standard magnetic handles alongside an array of specialty screwdriver bits optimized for electronics repair.
An informational graphic diagram detailing the features of the Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set. Text highlights include the job-site tough S2M steel construction, the secure modular Pick-and-Click system, two dedicated driver handles for varied tasks, and color-coded rings for quick bit identification.
A technician uses a precision screwdriver from the Bosch PB4042 kit to adjust small fasteners on a drone propeller assembly. The overlay text emphasizes that each bit is forged from heat-treated S2 modified steel to handle tough fastening applications without deforming.
A close-up view of a technician repairing a smartphone using the dedicated precision handle from the Bosch PB4042 bit set. The text on the image describes how the magnetic handles securely grip the driver bits, preventing drops and allowing precise placement of tiny electronic screws.
An electronics technician works on the complex interior components of an unsealed laptop using a precise driver handle. Graphic text below highlights that the dedicated precision handle and bits are engineered for high-level control and accuracy during delicate device maintenance.
A detailed view of a repair specialist performing intricate maintenance on a miniature drone motor using a precision tool from the Bosch PB4042 set. Infographic text underlines the durability of the heat-treated S2 modified steel bits engineered to withstand repeated mechanical use.
The Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set is displayed open with its custom Pick-and-Click storage case. The dual-purpose fastening kit features an assortment of color-coded S2 steel bits arranged alongside a precision driver handle, with a larger standard magnetic driver handle and loose bits placed in the foreground.
A top-down view of the Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set inside its organized storage case with a clear lid. The compact fastener driver kit securely stores both the precision and standard magnetic handles alongside an array of specialty screwdriver bits optimized for electronics repair.
An informational graphic diagram detailing the features of the Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set. Text highlights include the job-site tough S2M steel construction, the secure modular Pick-and-Click system, two dedicated driver handles for varied tasks, and color-coded rings for quick bit identification.
A technician uses a precision screwdriver from the Bosch PB4042 kit to adjust small fasteners on a drone propeller assembly. The overlay text emphasizes that each bit is forged from heat-treated S2 modified steel to handle tough fastening applications without deforming.
A close-up view of a technician repairing a smartphone using the dedicated precision handle from the Bosch PB4042 bit set. The text on the image describes how the magnetic handles securely grip the driver bits, preventing drops and allowing precise placement of tiny electronic screws.
An electronics technician works on the complex interior components of an unsealed laptop using a precise driver handle. Graphic text below highlights that the dedicated precision handle and bits are engineered for high-level control and accuracy during delicate device maintenance.
A detailed view of a repair specialist performing intricate maintenance on a miniature drone motor using a precision tool from the Bosch PB4042 set. Infographic text underlines the durability of the heat-treated S2 modified steel bits engineered to withstand repeated mechanical use.
BOSCH

Bosch 42 Piece Extra Hard Precision Screwdriver Bit Set Magnetic Handles S2 Steel Fastener Driver Kit for Electronics Standard Repair PB4042

In stock
SKU: PB4042
$27.99 USD

Description

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Upgrade Your Toolbox with the Ultimate Precision and Standard Fastening Solution

The Bosch PB4042 42-Piece Extra Hard Precision Screwdriver Bit Set is the ultimate dual-purpose fastening system engineered for both heavy-duty standard tasks and delicate electronics repairs. Forged from heat-treated, premium S2-modified steel, these "Extra Hard" bits provide unmatched jobsite durability, ensuring a long service life without stripping or deforming under torque. Whether you are assembling furniture, repairing high-end consumer electronics like laptops, smartphones, and eyeglasses, or tackling routine maintenance, this comprehensive kit offers the exact professional-grade tool required for maximum control and accuracy.

Designed for fast-paced, efficient workflows, this premium set includes two dedicated ergonomic magnetic screwdriver handles—one tailored for heavy-duty standard applications and a smaller, high-control handle optimized for intricate precision work. The color-coded bit system allows for instant type identification at a glance, eliminating guesswork on the job. Everything comes securely housed in a robust, portable Bosch Pick-and-Click storage case featuring a clear, transparent lid for effortless organization. Keep your workspace orderly and protect your fastening investment with this professional, multi-functional driver set.

Key Features

  • Dual-Purpose Performance: Features 20 specialized precision bits for intricate electronics repair and 20 robust standard insert bits for everyday general fastening.
  • Premium S2M Steel Construction: Forged from premium, heat-treated S2-modified steel to withstand high-torque applications without stripping or breaking.
  • Color-Coded Identification: Bits are individually color-coded by drive style for lightning-fast tool selection and enhanced workplace productivity.
  • Dual Ergonomic Magnetic Handles: Includes two separate handles equipped with strong magnetic tips to hold bits securely for steady, one-handed operation.
  • Comprehensive Bit Assortment: Complete with Phillips, Torx (Security), Hex, Slotted, Pozidriv, Tri-wing, Pentalobe (Star), and Triangle bits to fit nearly any modern fastener.
  • Secure Pick-and-Click Case: Part of the click-and-store system that locks bits firmly into place, featuring a clear window for easy inventory management.

What's Included

  • (20) Precision Screwdriver Bits (Phillips, Torx, Hex, Slotted, Tri-Wing, Spanner, Star, Triangle)
  • (20) Standard Insert Screwdriver Bits (Phillips, Pozidriv, Security Torx, Hex, Slotted, Tri-Wing, Spanner)
  • (1) Standard Magnetic Bit Handle
  • (1) Precision Magnetic Bit Handle
  • (1) Bosch Pick-and-Click Modular Storage Case

Specifications

Specification Details
Brand Name Bosch
Application Precision & Standard Screwdriving
Assembled Depth 1 in
Assembled Weight 0.97 lbs
California Proposition 65 Warning Required No
Country of Origin China
MFG Part # (OEM) PB4042
Product Condition New
Shipping Weight 0.97 lbs
UPC 000346678406
Warranty Type No Manufacturer's Warranty


Pro-Tip: When performing intricate repairs on electronics or circuit boards, always use the dedicated precision handle. Do not over-tighten small fasteners; instead, tighten until you feel snug resistance. The integrated magnetic tips are perfect for managing tiny screws, preventing them from falling deep inside complex components during disassembly.