Irwin 35571 Series Magnetic He...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6.13
Irwin 35571 Series Magnetic Hex Shank Bit Holder with C-Ring Retention

Irwin 35571 Series Magnetic Hex Shank Bit Holder with C-Ring Retention

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Model: 3557121C

In Stock (leaves warehouse same day if ordered before 3pm ET)

$6.13
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Irwin Magnetic Hex Shank Bit Holder with C-Ring Retention

The Irwin Bit Holder Series features a 1/4" hex shank designed for use with insert bits only, providing a secure, quick-change connection for driving applications. This magnetic bit holder includes a built-in magnetic tip for retaining bits during use and a C-Ring retention style to keep bits seated firmly in place. Compatible with a socket wrench or socket adapter, this holder is available in multiple configurations, including versions with and without a magnet and with and without a C-Ring, making it a versatile addition to any tool setup for professionals and DIY users alike. This bit holder is available in two configurations to help you choose the exact combination of magnetic retention and C-Ring security your driving tasks require.

Key Features

  • Trade Size: 1/4" hex shank sized for use with insert bits only, not standard round-shank bits.
  • Magnetic Retention: Built-in magnetic tip helps hold insert bits securely in place during use.
  • Holder Style: Standard design with C-Ring retention for added bit security and reduced bit slip-out.
  • Versatile Compatibility: Works with a socket wrench or socket adapter for flexible driving setups on the jobsite, in the shop, or for on-the-go repair work.
  • Configuration Options: Available with and without a magnet, and with and without a C-Ring, to match different bit-holding preferences.
  • Insert-Bit Design: Engineered specifically for insert bits rather than standard round-shank bits for a precise fit.

Technical Specifications

  • Pack Qty: 1
  • Magnetic: Yes
  • Packaging: Carded
  • Holder Style: Standard with C-Ring

Typical Applications

  • Driving Insert Bits with a Socket Wrench
  • Use with a Socket Adapter on Drills or Drivers
  • Professional and DIY Fastening Tasks
  • Quick-Change Bit Setups for Repetitive Driving Work
  • General Shop and Jobsite Bit Organization

Why Irwin?

Irwin's Bit Holder line is purpose-built for insert bits, combining a magnetic tip with C-Ring retention to keep bits secure through repeated use. Whether paired with a socket wrench or socket adapter, this 1/4" hex shank holder delivers a dependable, quick-change connection that professionals and DIY users can count on for consistent, everyday driving performance. Available in multiple configurations, the line lets users choose the exact combination of magnet and C-Ring retention that best fits their workflow and bit-holding preferences. Backed by Irwin's reputation for dependable hand tools, this bit holder is a practical, no-fuss accessory for anyone who regularly drives insert bits.

Manufacturer Resources

Spec Sheet

Product Specs

Pack Qty:
1
Packaging:
Carded
Magnetic:
Yes
Holder Style:
Standard with C-Ring
list_batch:
IRW-20260923
Product Type:
Bit Holder & Extension
Configuration:
C-Ring Retention
Series:
35571
Department:
Electrical
Product Subgroup:
Drill & Driver Bits
Product Size:
1/4"
Product Width:
1.9 inches
Product Height:
0.5 inches
Product Group:
Power Tools & Accessories

Irwin 3557121C – Frequently Asked Questions

1) Will the Irwin 35571 bit holder take standard round-shank screwdriver bits?
No. The 35571 holder is built for 1/4 inch hex insert bits only. Round-shank bits won't seat in the hex socket or lock under the C-Ring, so they'll spin or fall out. If your bits are the short 1-inch hex insert type, they're the right match.
2) What lengths does the Irwin 35571 magnetic bit holder come in, and which should I pick?
Two overall lengths: 2-1/4 in (part 3557121C) and 3 in (part 3557181C). The shorter one keeps the bit tight to the driver for work in tight cabinets or panel boxes where headroom is short. The 3 in holder buys you reach into recessed fasteners and deeper boxes, at the cost of a little more wobble at the tip.
3) What does the C-Ring on this Irwin holder actually do, and do I need it?
The C-Ring is a retaining ring inside the bit socket that grips the insert bit's groove mechanically, so the bit does not walk out when you pull the driver off a fastener. The magnetic tip alone holds the bit, but under repetitive driving or when a bit sticks in a screw head the magnet can let go. Irwin's 35571 holder is the Standard with C-Ring style, magnetic as well, so you get both forms of retention. Irwin also builds versions of the line without the magnet and without the C-Ring if you prefer a plain holder.
4) Can I use this Irwin bit holder with a socket wrench instead of a drill?
Yes. The holder's shank is made to drive from a socket wrench or a socket adapter, so you can hand-ratchet fasteners in spots where a drill won't fit, then move the same holder onto a drill or impact driver through an adapter.
5) Does the Irwin 35571 bit holder come with any bits included?
No bits. It is sold as the holder alone, one piece per card, so you supply your own 1/4 inch hex insert bits. For an electrical or MRO cart, plan on ordering the holder alongside the insert bit set you intend to run in it.
6) Is this Irwin holder magnetic enough to hold a screw on the bit for one-handed work?
The holder has a built-in magnetic tip whose job is retaining the insert bit. Magnetism transfers through a steel bit well enough to hold small fasteners in most cases, but the stated purpose of the magnet on the 35571 is bit retention, not fastener pickup, so don't count on it for heavy screws overhead.
7) How much space does the Irwin 35571 bit holder take up in a pouch or on a peg display?
The carded unit measures 1.9 inches wide and 0.5 inches high, so it hangs on a standard peg hook and drops into a bit pocket without taking a dedicated slot. One holder per card.
How fast can I get the Irwin 3557121C delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Irwin 3557121C come with a warranty?
Absolutely. The Irwin 3557121C is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Irwin 3557121C?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Irwin 3557121C from ZenSupply?
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