Magnetic Nut Setter / Hex Driver Bit (Бита магнитная) – S2 Steel & Impact Ready

Product Overview: The Ultimate Partner for Hex Head Screws

Our Magnetic Nut Setters (also referred to as Hex Driver Bits, Nut Drivers, or Power Bits) are the essential link between your power drill and the fastener. Designed specifically for driving hex-washer-head self-drilling screws and self-tapping screws, these bits are widely used in metal roofing, HVAC installation, and steel structure assembly.

Unlike cheap carbon steel bits that strip or shatter under torque, our bits are engineered from industrial-grade S2 Tool Steel, offering superior hardness and shock resistance. The built-in high-strength magnet ensures the screw is held securely in place, allowing for one-handed operation—a critical feature for workers balancing on ladders or roofs.

Russian Name: Бита магнитная / Насадка для кровельных саморезов / Торцевая головка

Material Grade: Premium S2 Steel (HRC 58-62)

Engineering Features & Material Science

1. Why S2 Steel Matters?

Most standard bits found in hardware stores are made from Chrome Vanadium (CR-V). While adequate for DIY, CR-V often fails under the high impact of modern impact drivers. We use S2 Steel, a shock-resisting tool steel that is significantly tougher.

• Durability: S2 steel can withstand high torque peaks without snapping (cam-out).

• Life Span: Our testing shows that one S2 nut setter can drive over 2,000 roofing screws before showing signs of wear, compared to just 500 for standard CR-V bits.

2. Powerful Magnetic Hold

The core of our Nut Setter features a pressed-in industrial magnet.

• Function: It holds the heavy hex-head screw firmly inside the socket.

• Efficiency: This eliminates the frustration of dropping screws, especially when working at heights or difficult angles.

• Cleanability: The magnet is recessed slightly to allow for easy removal of metal shavings (swarf) that accumulate during drilling.

3. Universal 1/4″ Hex Shank

All our bits feature a standard 1/4-inch (6.35mm) Quick-Change Hex Shank.

• Compatibility: Fits perfectly into all cordless drills, impact drivers, and pneumatic screwdrivers (brands like Makita, DeWalt, Bosch, Milwaukee).

• Groove Design: The power groove ensures the bit locks securely into the tool chuck (Quick Release System) and won’t fall out during operation.

Detailed Technical Specifications

We offer a comprehensive range of sizes to match every DIN and IFI standard screw head.

Property	Specification Details
Product Name	Magnetic Nut Setter, Hex Driver Bit, Power Nut Driver
Russian Name	Бита под кровельный саморез (8mm/10mm)
Material	S2 Alloy Steel (Top Grade) / 50BV30 / CR-V
Socket Size (Metric)	8mm (Most popular for roofing), 6mm, 7mm, 10mm, 12mm, 13mm
Socket Size (Inch)	1/4″, 5/16″ (Standard US), 3/8″, 7/16″
Overall Length	42mm, 45mm, 65mm (Standard), 100mm, 150mm (Long Reach)
Hardness	HRC 58 – 62
Surface Finish	Sandblasted (Grey), Black Phosphate, Nickel Plated, Chrome Plated
Magnetism	Strong Permanent Magnet included
Shank Type	1/4″ Hex (6.35mm) with Power Groove

Application Scenarios

• Metal Roofing: Installing color-coated steel sheets using 8mm hex head screws.

• Sandwich Panels: Driving long bi-metal screws into thick steel beams using 8mm or 10mm bits.

• HVAC Systems: Assembling ventilation ducts with self-drilling screws.

• Decking: Installing timber-to-steel fasteners.

Quality Control & Manufacturing

At HDBolt, we treat these “consumables” with the same seriousness as our structural bolts.

• Concentricity Test: We ensure the socket is perfectly aligned with the shank. A wobbling bit causes the screw to cam-out and damages the paint on the roofing sheet. Our bits run true.

• Torque Testing: Random samples are subjected to destruction tests to ensure they meet DIN/ISO torque standards.

• Magnet Check: We verify the magnetic pull force is sufficient to hold a 100mm screw horizontally without dropping.

Customization & Packaging

We understand that brand presentation is key for retailers.

• Laser Marking: We can laser etch your logo and the size (e.g., “HDBolt 8mm”) on every single bit.

• Retail Packing:

  • Bulk: 500 pcs/box (for industrial supply).

  • Set: 5 pcs or 10 pcs in a plastic tube or blister card with your barcode.

  • Mixed Sets: We can combine 8mm nut setters with PH2 bits in a single kit.

Get a Quote for Wholesale

Whether you need a few cartons to accompany your screw order or a full pallet of OEM-branded bits, we offer factory-direct pricing.

Please Contact Us to request free samples to test our S2 steel quality against your current supplier.