Leatherman - Custom Bit Kit (42-Tool Expansion Array) – Premium Hardened Zinc-Coated Double-Ended Bit Sleeves

Leatherman - Custom Bit Kit (42-Tool Expansion Array) – Premium Hardened Zinc-Coated Double-Ended Bit Sleeves

Unleash the full mechanical potential of your primary utility platform with the authentic Leatherman Bit Kit. Engineered to expand your built-in driver's capabilities from a few standard functions into a comprehensive, multi-industry toolkit, this expansion kit features 21 double-ended bits to deliver 42 individual tools in a remarkably flat, weight-saving footprint. Each bit is precision-machined from high-carbon tool steel and finished with a durable zinc-plated protective layer to resist field rust and strip-out damage under high torsional pressure. Housed in two ultra-slim, impact-resistant plastic organizing cards that slide flat into almost any premium Leatherman sheath, this system ensures you can tackle any precision fastener, mechanical machinery, or unexpected repair on the fly.

Best For Field technicians, bicycle and motorcycle mechanics, IT hardware engineers, military personnel, and everyday carry (EDC) power-users who need a complete arsenal of metric, imperial, Torx, and security drivers without carrying a heavy, traditional socket set.

Key Features

• Massive 42-Tool Mechanical Expansion: Doubles the diagnostic capability of your multi-tool by packing 21 double-ended, flat-profile bits covering standard flathead, Phillips, hex, Torx, Pozi, and Robertson fastener designs.

• Hardened Zinc-Coated Metallurgy: Precision-forged from industrial-grade tool steel and treated with a proprietary anti-corrosion zinc plating, providing clean fastener engagement and long-term structural durability.

• Ultra-Flat Profile Organization: Designed with Leatherman's proprietary flat-sided bit geometry, allowing the two included holder cards to stack neatly together, sliding seamlessly into the rear accessory pockets of premium nylon or MOLLE belt sheaths.

• Includes Specialized Micro-Driver: Outfitted with the essential solid steel double-ended micro-driver (Eyeglass Bit), purpose-built for servicing electronic components, precision gear, and optical frames.

Technical Specifications

• Model Series: Authentic Leatherman Multi-Tool Accessory Expansion Fleet

• Bit Metallurgy: Zinc-Coated Hardened High-Carbon Tool Steel

• Bit Profile Geometry: Proprietary Flat-Sided Leatherman Locking Standard

• Total Bit Count: 21 Double-Ended Interchangeable Elements (42 Distinct Drivers)

• Available Tool Colour: Tactical Matte Black / Zinc Oxide Finish

• Storage Media: 2 x Heavy-Duty High-Density Polymer Bit Organizer Cards

• Manufacturing Origin: Authentically Engineered, Sourced, and Quality-Approved by Leatherman USA

Complete 42-Tool Driver Inventory

Official Tool Compatibility Matrix

Pro Tip & Bit Kit Field Maintenance: Because these flat bits are forged from high-tensile tool steel designed to withstand extreme torque, keeping them clean and lightly oiled is essential. If your bits are exposed to rainwater, salt air, or corrosive chemical fluids while working, wipe them completely dry with a clean shop rag and apply a light mist of rust-preventative lubricant or a microscopic wipe of mineral oil before storing them back in their polymer organizing sleeves. When applying heavy mechanical force to a stubborn screw, ensure the flat bit is pushed completely and firmly into your multi-tool’s locking bit driver bay—maintaining clean, square alignment stops the bit from jumping out and perfectly preserves both the screw head and your driver's edge!