21mm Bolt Extractor Socket – CR-MO Steel Construction

Overview

This 21mm bolt extractor socket is engineered for mechanics and technicians who regularly encounter stripped, rounded, or corroded fasteners. The spiral flute geometry bites aggressively into damaged bolt heads, providing reliable grip where standard sockets fail. Constructed from chromium-molybdenum steel with a dark oxide finish, it delivers durability and corrosion resistance in demanding shop environments.

For operations requiring multiple sizes, complementary options like spiral-tooth extractors in smaller sizes and comprehensive multi-piece extractor sets are available to round out your fastener recovery toolkit.

Key Features

• Spiral Flute Design: Inward-facing cutting edges engage damaged bolt heads with positive grip
• Square Drive Opening: Compatible with standard drive tools and adapters
• Hexagonal Drive End: Wrench-compatible hex flats for manual operation or power tool attachment
• CR-MO Steel Construction: Superior hardness and impact resistance compared to standard carbon steel
• Dark Oxide Finish: Corrosion protection and extended service life
• Compact Form Factor: Fits tight spaces where larger extractors cannot reach

Business Advantages for Resellers

• High Margin Tool: Damaged fastener removal is a frequent, unavoidable shop need—customers will pay premium prices for reliable solutions
• Recurring Demand: Bolt damage is consistent across all service environments (automotive, industrial, mechanical assembly)
• Stocking Essential: A single 21mm size targets the most common large-fastener applications; pairs well with smaller extractor sets for complete coverage
• Professional Credibility: Offering dedicated fastener recovery tools positions your operation as solution-oriented and comprehensive
• Low Carrying Cost: Single socket requires minimal shelf space with strong turn-over potential

Technical Specifications

Specification	Value
Socket Size	21mm
Drive Type	Square Drive (open end)
Drive End	Hexagonal flats (wrench-compatible)
Material	Chromium-Molybdenum (CR-MO) Steel
Finish	Dark Oxide/Phosphate
Cutting Geometry	Spiral flutes with inward-facing edges
Application	Damaged, stripped, rounded fasteners
Intended Use	Manual wrench or power tool operation

Closing Value Statement

When a fastener is damaged beyond standard socket engagement, this extractor socket becomes indispensable. Stock it for mechanics who demand zero downtime on bolt removal—and watch it drive customer loyalty and repeat business.