The 1" + 2" Common 20pc Mega Bitrail is the most complete Common bitrail in the Railer lineup, pairing a full 1 inch set with a full 2 inch set on a single 20-hole Mega Bitrail. Railer includes #1, #2 (×2), and #3 Phillips, #1, #2, and #3 Square, T20 and T25 Torx, and a 3/16 Slotted, in both 1 inch and 2 inch lengths. The set is a strong fit for users who handle a wide range of fasteners and want short bits for tight spots and longer bits for recessed or stacked work, all at hand on the same crushproof, weatherproof Bitrail. The 20-piece format is a useful upgrade for general contractors, maintenance crews, multi-trade users, and anyone who hits the limits of a 10-piece Common rail.

• Product Type: Standard Length Common (Phillips, Square, Torx, Slotted) Screwdriver Bit Set with Magnetizer Organizer Rail
• Piece Count: 20 Pieces
• Drive Type: Phillips, Square, Torx, Slotted
• Bit Length: 2 inches
• Included Sizes: #1 Phillips (2 pcs), #2 Phillips (5 pcs), #3 Phillips (2 pcs), #1 Square, #2 Square (3 pcs), #3 Square, T20 Torx (2 pcs), T25 Torx (3 pcs), 3/16" Slotted
• Special Feature: Included Mega Bitrail features a built-in magnetizer to charge bit tips
• Shank Compatibility: Standard 1/4-inch hex shank (fits power drills, impact drivers, and standard bit holders)
• Storage: Includes a durable 20-hole Mega Bitrail organizer with carabiner
• Available Bitrail Colors: Black, Orange

What sizes are included in this mega common bit set?

This expanded 20-piece set includes a massive stockpile of the most frequently used fasteners: multiple #1, #2, and #3 Phillips, #1, #2, and #3 Square, T20 and T25 Torx, plus a 3/16" Slotted bit, ensuring you always have backups on hand.

Why choose a 2-inch screwdriver bit?

The standard 2-inch length provides an ideal balance of compact size and direct power transfer. It allows the bit to lock directly into impact driver chucks without needing a separate magnetic bit holder, offering a sturdy, low-wobble connection.

Are these bits impact-rated for heavy-duty use?

Yes. These 2-inch driver bits feature a standard 1/4-inch hex shank and are precision-machined to withstand the high-torque demands of modern cordless impact drivers and power drills without premature wear or cam-out.

What types of projects are best for this common bit set?

Featuring a comprehensive mix of Phillips, Square (Robertson), Torx (Star), and Slotted bits, this expanded set means you rarely have to pause a job to hunt for the right tool. It is ideal for heavy decking, professional cabinet installation, furniture assembly, electrical work, and general construction.

• Impact Drivers: Fully compatible with all major brand 1/4-inch quick-release impact driver chucks and collets.
• Power Drills: Fits securely in standard 3/8-inch and 1/2-inch keyless chucks on both cordless and corded power drills.
• Manual Hand Tools: Locks perfectly into standard 1/4-inch manual multi-bit screwdrivers and T-handle drivers.
• Fastener Types: Precision-milled to seamlessly fit common Phillips, Square (Robertson), Torx (Star), and Slotted (Flathead) screws and fasteners.
• Tool Storage: The included 20-hole Mega Bitrail organizes your impact bits securely, keeps them magnetically charged, and features a carabiner to easily clip onto tool bags, tool belts, or pegboards.