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Long black impact Torx T40 bit socket with ASTA branding and 1/2 inch drive base

T40 Long/Deep Reach Impact Torx Socket, 1/2" Drive, 63.31 Nm Max

Heavy-duty T40 impact Torx socket with extended reach for deep fastener access. CR-MO construction rated to 63.31 Nm.

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Description

T40 Long/Deep Reach Impact Torx Socket, 1/2" Drive

Brief Overview

This T40 impact Torx socket is built for professionals who need reliable access to deeply recessed star-drive fasteners. The extended 78 mm length gives you reach into tight engine bays, transmission housings, and multi-layer assemblies where standard sockets fall short. Machined from chrome-molybdenum steel with impact-grade surface treatment, it withstands the shock loads of pneumatic impact wrenches without deformation or bit slip.

If you're stocking a comprehensive impact socket range, pair this with larger T45 and T50 impact Torx options for complete coverage across medium to heavy fastener sizes, or explore extended Torx socket bit sets for shop-wide inventory efficiency.

Key Features

  • T40 Torx Profile: Standard ISO 11603 star geometry for precise fitment and minimal cam-out risk
  • Extended Reach Design: 78 mm overall length eliminates the need for extensions in most deep-set applications
  • Impact-Grade Construction: CR-MO steel with dark matte coating resists cracking and dulling under repeated impact cycling
  • 1/2" Square Drive: Direct compatibility with standard air impact wrenches and breaker bars
  • Detent Locking: Built-in retention feature keeps the socket firmly seated on the drive tool

Technical Specifications

Specification Value
Torx Size T40
Drive Type 1/2" Square Drive (Male)
Overall Length 78 mm
Socket Depth 10 mm
Maximum Torque Rating 63.31 Nm
Material Chrome-Molybdenum Steel
Surface Finish Impact-Grade Matte
Part Number 531440

Business Advantages for Distributors

Stock Appeal: The T40 sits in the sweet spot of fastener applications—mid-range torque demand across automotive, industrial assembly, and heavy equipment repair. It's the socket mechanics reach for when standard T35 and T45 options don't cover the job.

Margin Opportunity: Impact Torx sockets command steady demand and lower return rates compared to standard hex sockets because they perform a specific, high-value function. Professional shops will reorder.

Ecosystem Integration: This socket pairs naturally with larger Torx sizes (T45, T50, T60) and complements full bit socket sets. Recommend as an upsell to customers building impact socket collections.

Durability Profile: Chrome-molybdenum construction means fewer warranty claims and customer callbacks—your reputation improves with every sale.

Application Context

The T40 excels in precision assembly environments—electronics manufacturing, automotive transmission work, motorcycle engine rebuilds—where fasteners are recessed and torque demands are moderate to firm. The extended length handles multi-component stacks without requiring socket extensions, reducing complexity and failure points on the job.

Stock This for Maximum Turnover

Order in multiples. Professional shops that invest in impact Torx solutions typically purchase entire size ranges. Having the T40 available when a technician calls for "the next size up" from T35 keeps the sale in your channel.