BOEN 21-Piece Drive Tool Accessory Set — 1/4", 3/8", 1/2" Extensions, Adapters, Universal Joints & Hex Shank

Premium durability for demanding jobs

The BOEN 21-Piece Drive Tool Accessory Set is built from premium chromium-vanadium alloy steel. This choice supports high-torque applications, helping resist bending, cracking, and rounding under tough conditions. The alloy’s enhanced hardness contributes to long-term wear resistance, helping maintain a precise grip on fasteners across many cycles. This combination of strength and precision positions the set as a versatile companion for professional or serious hobbyist work without overpromising outcomes.

What you get

• 1/4" drive extension bars available in 3" and 6" lengths
• 3/8" drive extension bars in 3", 6", and 10" lengths
• 1/2" drive extension bars in 3", 5", and 10" lengths
• Socket adapters: 1/4"F x 3/8"M, 3/8"F x 1/4"M, 3/8"F x 1/2"M, 1/2"F x 3/8"M
• Universal joints: 1/4", 3/8", and 1/2" drive
• Impact bit holders: 1/4" Hex with 1/4" Dr, 1/4" Hex with 3/8" Dr, 1/4" Hex with 1/2" Dr
• 1/4-Inch hex shank extension to 1/4", 3/8", and 1/2" drive

Designed for efficiency and longevity

• Anti-rust protection and easy prep: a temporary rust-preventive coating plus a black phosphate finish help extend longevity in storage and on outdoor sites; wipe clean before use for a secure grip
• Clear size markings on all tools for quick identification, reducing guesswork when selecting the right accessory
• A comprehensive range of sizes and tools supports use in tight spaces, at angles, or with multiple drive sizes

Organization and protection

The set ships with a rugged blow-molded case designed to keep the full collection organized, portable, and protected, helping you keep everything within reach when you need it most.