40-Piece Hex, Star, and Spline Bit Set with 3/8" and 1/2" Drive Adapters

Brief Overview

This 40-piece bit set delivers the versatility your shop needs for fastening work across multiple drive sizes and fastener profiles. The dual-adapter design (3/8" and 1/2" drive) makes this set a genuine one-for-two solution, eliminating the need to stock separate bit collections for different drive sizes. Engineered for durability with S2 steel construction, these bits handle sustained torque without chipping or deforming. If your team also works with dedicated socket configurations, you can complement this set with specialized spline bit socket options or dedicated hex bit sockets for specific applications requiring maximum efficiency.

Key Features

• Three fastener profiles included: 14 hexagonal bits, 14 Torx® (star) bits, and 10 spline (XZN) bits
• Dual-length design: Each profile available in both 30mm (short) and 75mm (long) configurations for access to recessed and deep fasteners
• Dual-drive compatibility: Includes both 3/8" and 1/2" drive adapters, enabling seamless use across multiple socket wrench systems
• S2 steel construction: Premium hardened steel resists deformation, cam-out, and premature wear during repetitive use
• 10mm hex insert bit interface: All bits feature standardized 10mm hex shanks for universal compatibility with available adapters
• Metal storage case: Robust blue metal box with molded black insert tray keeps bits organized and protected during transport and workshop storage

Complete Bit Inventory

Profile	Sizes	Short (30mm)	Long (75mm)	Total
Hex	4, 5, 6, 7, 8, 10, 12	7 pieces	7 pieces	14 pieces
Torx® (Star)	T20, T25, T30, T40, T45, T50, T55	7 pieces	7 pieces	14 pieces
Spline (XZN)	5, 6, 8, 10, 12	5 pieces	5 pieces	10 pieces
Drive Adapters	3/8" + 1/2"	—	—	2 pieces

Business Advantages for Resellers

Market Coverage: This set addresses three major fastener profiles in a single SKU, reducing inventory complexity while providing customers with comprehensive workshop coverage.

Margin Potential: The dual-drive design commands a premium compared to single-drive alternatives, as it eliminates customer need to purchase separate adapters or complete sets for each drive size.

Inventory Efficiency: Stock one SKU instead of maintaining parallel 3/8" and 1/2" versions, freeing shelf space for higher-velocity items while still meeting cross-drive demand.

Customer Retention: The long/short dual-length provision addresses both shallow and deep-access fastening scenarios, reducing callbacks and increasing customer satisfaction with your product selection.

Technical Specifications

Specification	Details
Bit Interface	10mm hex shank
Drive Compatibility	3/8" and 1/2" drive (via supplied adapters)
Material	S2 steel (hardened)
Bit Lengths	30mm (short) and 75mm (long)
Fastener Profiles	Hexagonal, Torx® (star), Spline (XZN)
Total Piece Count	40 pieces (including 2 adapters)
Storage	Blue metal case with molded tray insert
Weight	Approximately 2.5–3 kg (including case)

Applications & Real-World Use

• Automotive service: Access hex, Torx, and spline fasteners in engine compartments, suspensions, and interior trim
• Machinery assembly and maintenance: Handle fastener profiles on industrial equipment with access constraints
• Electronics and precision assembly: Shorter 30mm bits for shallow-pocket fasteners; longer 75mm bits for through-access work
• Multi-trade shops: Single set covers hex, star, and spline fastener profiles, reducing tool redundancy across departments

Why This Set Works for Your Business

The 40-piece configuration provides legitimate depth (not token coverage) across three critical profiles with actual size ranges that address real-world fastening scenarios. The dual-length approach eliminates the frustration of "wrong length for the job," while the dual-drive adapters reduce SKU proliferation on your shelves. S2 steel durability means lower warranty costs and higher customer repeat purchases. This is a set built for professionals who need reliability and coverage without the dead weight of gimmick pieces.

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Ready to stock this set? Contact our sales team for bulk pricing and case quantities.