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Close-up of a dark metal hex screwdriver bit stamped with ASTA logoTechnical diagram of a 25 mm 1/4 inch hex screwdriver bit with dimensions

HEX 2.5 x 25mm Screwdriver Bit with 1/4" Hex Shank

Compact 25mm hex driver bit with 1/4" hex mounting shank for precision fastening and assembly work.

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Description

Product Description

Brief Overview

This is a precision-engineered screwdriver bit designed for controlled fastening of small hexagonal socket fasteners (2.5mm). The compact 25mm length and 1/4" hex shank make it ideal for work in confined spaces and for use with standard 1/4" hex holders, impact drivers, and drill chucks. It pairs well with larger hex driver bits for comprehensive fastening solutions across multiple fastener sizes.

Key Features

  • HEX 2.5 Driver Tip: Precisely machined hexagonal socket to drive 2.5mm hex fasteners
  • 25mm Overall Length: Short, compact profile for access to recessed or tight fastening points
  • 1/4" Hex Shank: Direct compatibility with standard 1/4" hex bit holders, quick-change chucks, and impact driver heads
  • Machined Construction: Flat-faced body with chamfered edges for secure seating in bit holders
  • Dark Matte Finish: Corrosion-resistant surface treatment for durability in workshop environments

Business Advantages for Resellers

  • High-Velocity Product: Small bits are consumable items with regular replacement demand—strong repeat order potential
  • Universal Compatibility: 1/4" hex shank fits all major 1/4" bit holder systems, expanding your customer base beyond single-brand users
  • Assembly & Electronics Focus: Perfect for precision assembly, electronics manufacturing, and OEM production lines—sectors with consistent, bulk purchasing patterns
  • Margin-Friendly: Low manufacturing cost with strong wholesale demand from job shops and production facilities
  • Stock Essential: Small hex bits are staple inventory items that every professional shop maintains

Technical Specifications

Specification Value
Driver Tip Size HEX 2.5mm
Overall Length (L) 25mm
Tip Length (L1) 11mm
Shank Type 1/4" Hex
Shank Diameter 6.35mm
Body Length Section 8.0mm
Finish Matte (corrosion-resistant)
Material Hardened Steel

Application Context

This bit excels in precision assembly environments where space is limited and fastener access is difficult. Common applications include:

  • Electronics Assembly: Small hex fasteners in circuit board enclosures and connectors
  • Precision Machinery: Calibration and adjustment fasteners in industrial equipment
  • OEM Production: High-volume fastening in automotive subassemblies and components
  • Instrument Repair: Adjustment and maintenance of precision instruments

The short 25mm length positions this tool for close-tolerance work rather than general construction or heavy fastening. Pair with extended hex bits for deeper-access fastening tasks.

Why Stock This Item

For distributors serving precision assembly shops, electronics manufacturers, and OEM facilities, this bit size covers a critical gap in fastener specifications. Its 1/4" universal shank ensures broad compatibility, while the compact length makes it indispensable for constrained assembly environments. Stock depth in this size drives customer loyalty and supports recurring bulk orders from production facilities.