Crescent APEX Impact Nut Driver Extractor Set CAVBXM1R-5 5 Piece Tool (1/4 To 1/2 Inch Bi-Directional Tapered Cr-Mo Magnetic Fastener Extraction)

Crescent APEX CAVBXM1R-5 5-Piece Bolt Biter™ Impact Nut Driver & Extractor Set

The Crescent APEX CAVBXM1R-5 5-piece Bolt Biter™ impact nut driver and extractor set drives new hex head fasteners and removes severely rounded, corroded, painted, or stripped 1/4-inch through 1/2-inch bolts across automotive chassis, HVAC equipment, and industrial machinery housings. Engineered with innovative bi-directional tapered socket geometry, this comprehensive impact accessory collection re-engages compromised fastener flanks without slippage while maintaining full forward driving capabilities. Outfitted with impact-grade alloy steel construction, integrated industrial rare-earth holding magnets that secure hardware in blind overhead runs, high-visibility laser-etched size markings, and a corrosion-resistant black oxide finish, it equips automotive mechanics, industrial service technicians, and MRO professionals with immediate fastener extraction without damaging surrounding assemblies.

Best Used For:

• Automotive Chassis and Suspension Repair: Backing out stripped, rusted, or weathered frame bolts, splash shield screws, and bracket hardware in tight engine bays.
• HVAC Equipment and Condenser Maintenance: Driving and removing corroded 5/16-inch and 3/8-inch hex-head sheet metal screws on commercial heat pumps and air handlers.
• Industrial Machinery Disassembly: Extracting rusted, thread-locked mechanical hardware and structural housing bolts on heavy production equipment without destroying surrounding panels.

Key Performance & Safety Features

• Bi-Directional Extraction & Driving: Patented socket geometry grips damaged fasteners in both tightening and loosening directions, enabling both screw installation and extraction with one tool.
• Tapered Entry Flutes: Specialized internal entry profile seats effortlessly onto rounded hex heads on the first try, eliminating manual file prep or hammer-on extractor steps.
• Impact-Rated Alloy Steel Durability: Heat-treated alloy steel core withstands peak torque spikes from modern 1/4-inch impact drivers and heavy-duty cordless drills.
• Industrial Magnetic Retention: High-strength integrated magnets hold screws and nuts firmly seated inside each socket during awkward horizontal and overhead reaches.
• Universal 1/4" Quick-Connect Hex Shank: Power groove shanks fit standard 1/4-inch impact driver quick-release chucks and conventional drill chucks without spinning out.
• High-Visibility Laser Etching: Permanent size and model markings allow rapid identification inside crowded bit cases and tool pouches.
• Corrosion-Resistant Black Oxide Coating: Protective chemical conversion finish guards against moisture, rust, motor oil, and jobsite chemical exposure.

What's Included

• (1) 1/4" Bolt Biter Impact Nut Driver and Extractor
• (1) 5/16" Bolt Biter Impact Nut Driver and Extractor
• (1) 3/8" Bolt Biter Impact Nut Driver and Extractor
• (1) 7/16" Bolt Biter Impact Nut Driver and Extractor
• (1) 1/2" Bolt Biter Impact Nut Driver and Extractor

Technical Specifications

Pro-Tip: When extracting a heavily corroded or rounded hex bolt using any driver in this set, apply steady forward axial pressure on your impact gun before pulling the trigger; allowing the tapered internal flutes to wedge securely over the degraded corners ensures immediate biting action without slipping or rounding the bolt further.