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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Baader Adjustable Spanner Wrench w/ 2mm Pins

Baader Adjustable Spanner Wrench w/ 2mm Pins

by Baader Planetarium
SKU BAA-2450062
$22.00 - $22.00
$22.00
$22.00 - $22.00
$22.00
Price Match Policy!
  • Adjustable jaw design fits a wide range of retaining rings
  • Precision-machined 2mm pins for secure engagement
  • Prevents scratches and damage to optics and housings during service
  • Safely remove and reinstall optical elements for cleaning
  • Essential tool for eyepiece, diagonal, and accessory maintenance
1 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader Adjustable Spanner Wrench w/ 2mm Pins

    The Baader Adjustable Spanner Wrench with 2mm Pins is the professional tool for safely disassembling and servicing your astronomical accessories. Designed specifically to engage the small slotted retaining rings found in eyepieces, diagonals, and camera adapters, this wrench prevents the costly slips and scratches that often result from using improper tools like screwdrivers or pliers. It provides the controlled, positive grip needed to protect your investment while performing essential maintenance.

    Baader Spanner Wrench: The Right Tool for Servicing Optics

    Many high-end optical accessories use threaded retaining rings to hold lenses or mirrors in place. When dust or fungus gets inside, disassembly is the only way to clean it. Using a generic tool risks gouging the ring's blackening, scratching the housing, or worse, slipping and permanently damaging a coated optical surface. The Baader Spanner Wrench is purpose-built to avoid this, turning a risky job into a routine one.

    Adjustable Jaws and 2mm Pins for Universal Compatibility

    Retaining rings do not come in a standard size, which is why an adjustable wrench is essential. The Baader Spanner Wrench's jaws slide smoothly to accommodate a wide range of diameters, making it a single solution for nearly your entire accessory case. The 2mm pins are machined to fit snugly into the retaining ring slots, ensuring a no-slip grip that allows you to apply firm, even torque for removal and reinstallation.

  • What is the Baader Spanner Wrench used for?

    The Baader Spanner Wrench is designed to safely remove and tighten slotted retaining rings that hold optical elements inside eyepieces, diagonals, Barlow lenses, and other accessories. It's the correct tool for performing deep cleaning or minor repairs without damaging your equipment.

    Can I use the Baader wrench to clean inside a premium eyepiece like a Tele Vue Nagler?

    Yes, this is precisely what the tool is for. Premium eyepieces often use retaining rings to secure their lens groups. This wrench allows you to carefully remove those rings to access internal surfaces for cleaning, something that would be extremely risky with a screwdriver.

    Will the 2mm pins on the Baader Spanner Wrench fit all retaining rings?

    The 2mm pin diameter is a very common standard for optical retaining rings in the astronomy industry. While some specialty or vintage equipment may use a different size, these pins will fit the vast majority of modern eyepieces and accessories from major manufacturers.

    Why is the Baader Spanner Wrench better than using needle-nose pliers?

    Needle-nose pliers have tapered tips that can easily slip out of a retaining ring's slot, causing them to scrape across the metal housing or the glass lens itself. The Baader wrench uses cylindrical 2mm pins that provide a secure, positive engagement, preventing slips and allowing for smooth, controlled pressure.

    Could I use this Baader wrench to adjust the corrector plate on my Celestron SCT?

    No, this tool is not intended for adjusting a corrector plate. Corrector plate retaining rings are much larger and often require a different type of tool with wider-spaced, larger pins. This wrench is specifically for smaller accessories like eyepieces and diagonals.

    How do I use the Baader Adjustable Spanner Wrench?

    To use the wrench, you simply adjust the central knob to open or close the jaws until the two pins line up perfectly with the slots on the retaining ring. Ensure the pins are fully seated in the slots, then apply slow, steady rotational pressure to loosen or tighten the ring.

  • Product Type Adjustable Spanner Wrench
    Pin Diameter 2mm
    Net weight (kg) 0.04

    • Baader Adjustable Spanner Wrench w/ 2mm Pins

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  • No downloads are available for this product.

  • Baader Planetarium Warranty