The 3-1/2" Square Mag Sleeve 5pc Bitrail pairs a longer-reach Square bit set with Railer Magnetic Bit Sleeves on a single rail. Railer includes #1 Square, #2 Square (×3), and #3 Square, all in 3-1/2 inch length, plus Magnetic Sleeves in Sizes 1, 2, and 3. The Mag Sleeve slides over the bit and uses an industrial-strength magnet to hold the screw on the bit during the start, which helps with one-handed drives and reduces cross-threading on framing, decking, and cabinet work where the screw has to start straight. The 5-piece format is a useful fit for users who run square drive screws often and want the magnetic sleeves close at hand on the same rail as the bits.
What sizes are included in this Square bit set?
This 5-piece set is focused on the most commonly used square drive sizes for woodworking and construction. It includes one #1 Square bit, three #2 Square bits, and one #3 Square bit, all featuring an extended 3-1/2 inch length.
What do the included magnetic sleeves do?
The set comes equipped with three different sizes of slide-on magnetic sleeves. When positioned over the driver bit, the industrial-strength magnets firmly grip the screw head. This securely holds the fastener in place, significantly reduces dropped screws, and helps you drive them perfectly straight to prevent cross-threading.
Why are these screwdriver bits 3-1/2 inches long?
The extended 3-1/2 inch length provides exceptional reach and clearance. It is highly beneficial for driving deeply recessed fasteners, working in tight spaces, or using pocket-hole joinery systems where standard 1-inch or 2-inch bits cannot reach.
Will these extended bits fit my impact driver?
Yes. Every bit in this set features a standard 1/4-inch hex shank, making them impact-ready and fully compatible with quick-release impact drivers as well as standard drill chucks.
What is the purpose of the included Bitrail?
The included 5-hole Bitrail organizer securely locks all five extended bits side-by-side. Its compact, highly portable design prevents these specialized bits from rolling around loose in your toolbox or getting lost at the bottom of your tool bag.