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Brownells

Magnetic Pin Starters - Small Magnetic Pin Starter

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Holds Round-headed

Gun pins when starting them

Designed Help

Prevent reassembly scratches

Small Magnetic

Pin starter from Brownells

Measures 3

Inches long

Small Hole

I.D. is .057 inch

$18.99
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SKU: 080242057

Overview

Designed for careful reassembly work, this pin starter helps hold round-headed gun pins as they are guided back into place. It is suited to situations where controlled placement matters and where avoiding scratches during assembly is a priority. The compact 3" tool is offered with small and medium hole sizes to match the listed pin diameters. For hunters and shooters who maintain their own equipment, it provides a simple, purpose-built aid for precise pin installation.

Why Hunters Choose the Brownells

Holds Round-headed

Gun pins securely while starting

Helps Reduce

Reassembly scratches during pin installation

Includes Small

Medium hole sizes for different

Compact 3-inch

Tool is easy to keep

Simple, Purpose-built

Design for controlled pin starting

Key Features

  • Holds round-headed gun pins when starting them back into their holes.
  • Designed to help prevent reassembly scratches.
  • Small magnetic pin starter from Brownells.
  • Measures 3 inches long.
  • Small hole I.D. is .057 inch.
  • Medium hole I.D. is .070 inch.

Best Used For

  • Gunsmiths starting round-headed pins back into place during careful reassembly work
  • Owners of S&W-style firearms needing controlled pin alignment for small-hole installation
  • Users wanting to reduce reassembly scratches while handling pinned components
  • Bench work on firearms with round-headed pins that fit small or medium starter holes

Specifications

Holds Round Headed Gun PinsYes
Hole I D Medium.070" (1.8mm)
Hole I D Small.057" (1.4mm)
Overall Length3" (7.6mm)
Prevents Reassembly ScratchesYes

Pros

  • Holds round-headed gun pins securely while starting them back into place.
  • Helps reduce reassembly scratches during pin installation.
  • Includes small and medium hole sizes for different pin diameters.
  • Compact 3-inch tool is easy to keep in a bench kit.
  • Simple, purpose-built design for controlled pin starting.

Considerations & Trade-offs

  • Sized for round-headed gun pins, so it is not a general-purpose pin starter for every firearm or fastener type.
  • The small version uses a .057" (1.4mm) hole I.D., so fit depends on matching the pin size to the tool.
  • At 3" (7.6mm) long, it is a compact specialty tool rather than a multi-function bench accessory.
  • Its value is most relevant during reassembly, where it helps reduce scratches; it does not address other fitting or alignment issues.

Suggested Comparisons

  • Gun pin starter tools
  • Gunsmithing punch sets
  • Firearm assembly and disassembly tools
  • Bench block and vise accessories

Suggested Accessories

  • Gunsmithing tools
  • Punch set
  • Bench block
  • Parts tray

Frequently Asked Questions

What is the Small Magnetic Pin Starter used for?

It is used to hold round-headed gun pins, such as those used by S&W, while starting them back into their holes.

What size pins does this tool fit?

The listed hole I.D. for the Small version is .057" (1.4mm). The product data also notes a Medium size at .070" (1.8mm), but this item is titled as the Small Magnetic Pin Starter.

How long is the tool?

The product specifications list it as 3" (7.6mm) long.

Does the product say what it prevents during reassembly?

Yes. The description says it is the best way to prevent reassembly scratches.

Is this a general-purpose pin starter for all gun pins?

The source only states that it holds round-headed gun pins, like those used by S&W. It does not claim compatibility with all pin types or all firearms.