Wheeler 100-Piece FAT Wrench Screwdriver Set | Gunsmithing & Maintenance

Premium precision for gunsmithing benches

Meet the Wheeler 100-Piece FAT Wrench Screwdriver Set, a thoughtfully designed kit built to support careful, repeatable work on a wide range of firearms. The bits are cut from high‑grade S2 tool steel and hardened to RC56–58, marrying toughness with a smooth feel as you work. Wheeler analyzed screws from over a hundred firearms to craft a broad, practical assortment that covers common and rare fasteners. The result is a kit that invites you to focus on the task rather than hunting for the right bit.

When accuracy matters, the FAT Wrench delivers. By applying precise inch-lb torque, you can gauge tension on every screw and aim for consistent results across tasks. The wrench features a rubber over-mold for a comfortable, non-slip grip, helping you maintain control through delicate steps. A hollow-ground bit design ensures a precise fit that minimizes marring and cam-out, a real advantage on tight or sensitive fasteners.

Versatility and range set this kit apart. It includes both metric and standard sizes to cover a wide variety of gunsmithing needs, with a fixed driver for stability and a comprehensive mix of bits designed to tackle many fastener styles. Everything stores neatly in a durable case, so you can keep your tools organized and ready for the next job. The overall footprint fits well on a busy workbench and the assembly weighs about 4.5 pounds, striking a balance between portability and sturdiness.

What you gain with this Wheeler set goes beyond a single project. Expect strong, rust-resistant components thanks to the black phosphate coating, reliable accuracy through the FAT Wrench, and a practical collection that supports both routine maintenance and more demanding tasks. While results can vary by task, this kit is designed to boost your confidence when selecting the right bit and applying controlled torque, all without complicating your workflow.

What's in the kit

• FAT Wrench for controlled inch-lb torque
• Fixed driver for steady leverage
• 28 flat hollow-ground bits
• 26 hex bits
• 15 nut driver bits
• 13 Torx bits
• 5 Philips bits
• 5 specialty bits
• 3 square bits
• 1 hex adapter
• 1 bit extension
• Storage case for organization

Key benefits for your workflow

• Precise torque control helps manage screw tension
• Hollow-ground bits promote accurate fits and reduced marring
• S2 tool steel provides durability and long life
• Rubber over-mold enhances grip and comfort
• Rust-resistant black phosphate coating protects the bits
• Metric and standard sizes cover a wide range of fasteners