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Spanner Wrenches

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Spanner Wrenches




  • Easily Work with Retaining Rings, Thread Adapters, and Mounted Aspheric Lenses
  • Stainless Steel Construction

Thorlabs' Spanner Wrenches are used to install and adjust retaining rings in lens tubes, lens mounts, and diode mounts. They are also useful when positioning thread adapters for aspheric lenses, connectorized fibers, and fiber collimators. The diamond-knurled grips and guide flanges provide safe, simple adjustment of retaining rings without risking damage to optical elements. Our standard spanner wrenches feature a hollow interior that allows a beam to pass through while the part is adjusted.

In addition to the standard spanner wrenches, we manufacture SM Spanner Bits with a standard 1/4" hex shank. Bits for our SM05, SM1, and SM2 standards are provided in a kit that includes a driver handle with a 1/4" hex socket and a case. The SM3 bit is sold separately.

For customers with specialized retaining rings, adapters, or mounts, Thorlabs offers the SPW801 Adjustable Spanner Wrench. The long blades on the SPW801 also prevent scratching of lenses with high curvature.

 


Spanner Wrenches for SM-Series Retaining Rings

 

  • SPW603: For SM05RR Retaining Rings (Length = 1")
  • SPW606: For SM1RR Retaining Rings (Length = 1")
  • SPW602: For SM1RR Retaining Rings (Length = 3.88", Graduated)
  • SPW607: For SM30RR Retaining Rings (Length = 4.35")
  • SPW604: For SM2RR Retaining Rings (Length = 4.35")
  • SPW605: For SM3RR Retaining Rings (Length = 4.35")

The hollow construction of these spanner wrenches allows SM-series retaining rings to be installed or adjusted without obscuring the beam path. They include guide flanges that prevent most optical surfaces from being scratched while the wrench is being inserted, and knurled handles that provide improved grip.

As shown to the right, the SPW602 additionally features an engraved depth scale with imperial and metric increments (0.02" and 0.5 mm, respectively), thereby enabling precise positioning of optics.

For retaining rings not covered by our standard spanner wrenches, please see the SPW801 Adjustable Spanner Wrench sold at the bottom of the page. The long blades on the SPW801 also prevent scratches caused by the guide flanges on lenses with high curvature.

 

Spanner Bits for SM-Series Retaining Rings

 

  • Bits Available for SM05, SM1, SM2, and SM3 Retaining Rings
  • Fits Any Standard 1/4" Hex Adapter
  • Kit Includes SM05, SM1, and SM2 Spanner Bits; Driver Handle with 1/4" Hex Socket; and Case
  • SM3 Spanner Bit Sold Individually

Spanner Bits allow SM-series retaining rings to be installed or adjusted without damaging optics that may be in place. They feature a standard 1/4" hex shank that allows them to be used with anything from the included driver handle to a power drill with an appropriate adapter.

The SPB600 Spanner Wrench Bit Kit includes bits for SM05, SM1, and SM2 retaining rings, along with a driver handle with a 1/4" hex socket. An SM3 bit is sold separately. Each bit includes guide flanges that prevent most optical elements from being scratched while the bit is being inserted. When using lenses with high curvature, we recommend the SPW801 Adjustable Spanner Wrench sold below, which uses long blades that prevent scratches caused by the guide flanges.

If using these bits with a power drill, care should be taken to avoid overtightening the retaining ring due to the added torque created by the tool. Electric tools should be used at a low speed, and we recommend that the final tightening of the retaining ring be done by hand.

 

Spanner Wrenches for Externally Threaded Adapters

 

  • SPW908: For Externally SM05-Threaded Adapters (See Table at Right)
  • SPW909: For Externally SM1- or C-Mount-Threaded Adapters (See Table at Right)
  • Hollow Construction Allows Beam to Pass Through
  • Compact 1" Length Enables Adjustments in Tight Spaces

These spanner wrenches feature a hollow construction that allows thread adapters to be positioned without obscuring the beam path, enabling fine adjustment while a beam is being collimated. Their knurled handles provide improved grip, and their 1" length allows them to be used in tight spaces, such as within a 30 mm cage assembly.

If your application uses our S05LEDM LED Adapter or S05LM9 Laser Diode Adapter, please see the SPW301 Spanner Wrench sold below.

SPW908 Compatibility
Adapter Type Item #
Aspheric Lens S05TM06, S05TM08, S05TM09
Polaris™ Retaining Ring POLARIS-SM05RRS40

 

SPW909 Compatibility
Adapter Type Item #
Aspheric Lens S1TM06, S1TM08, S1TM09, S1TM10, S1TM12
Connectorized Fiber CMTFC, CMTFCA, CMTSMA, S1FCA, SM1FC, SM1FCA, SM1SMA, SM1ST
Fiber Collimator AD9.5F, AD11F, AD12F, SM1PT
LED S1LEDM
Laser Diode S1LM9

 

Spanner Wrenches for Mounted Aspheric Lenses and Diode Retaining Rings

 

  • Designed for Mounted Aspheres
  • SPW301 is also for Diode Collimation Tubes, Focusing Tubes, and Adapters
  • Hollow Construction Allows Beam to Pass Through
  • Guide Flange Prevents Scratching of Optic Elements

These spanner wrenches are used to install and adjust our mounted aspheric lenses. Compatibility information is located on our aspheric lens webpages (see the table to the right). The SPW301 Spanner Wrench is additionally compatible with the retaining rings used in the S05LEDM LED Adapter, the S05LM9 Laser Diode Adapter, and our laser diode collimation and focusing tubes.

The spanner wrenches sold here feature a hollow construction that allows fine adjustment without obscuring the beam path. The guide flanges prevent optical surfaces from being scratched while the wrench is being inserted, and the knurled handles provide improved grip. Their compact 1" length allows them to be used in tight spaces. These spanner wrenches interconnect as shown in the photo in the Overview tab above, making it possible to reach retaining rings in longer lens tubes.

Aspheric Lenses
Uncoated, 405 nm, and 1064 nm
350 - 700 nm (-A Coating)
650 - 1050 nm (-B Coating)
1050 - 1620 nm (-C Coating)
1.8 - 3 µm, 3 - 5 µm, and 8 - 12 µm

 

Adjustable Spanner Wrench

 

  • Diameter Range from 0.12" to 2.89" (3.0 mm to 73.4 mm)
  • Self-Centering, One-Handed Diameter Adjustment Mechanism
  • Replaceable Stainless Steel Blades

Thorlabs' Adjustable Spanner Wrench features a spanning range that is continuously adjustable from 0.12" to 2.89" (3.0 mm to 73.4 mm). It is capable of providing an exact fit for SM-series retaining rings as large as the SM3RR for Ø3" Lens Tubes and Mounts. The diameter spanned by the blades remains centered while the knurled knob is adjusted.

The reversible blades have a flat tip on one end intended for use with retaining rings, and an edge-offset fine point on the opposing end for adapters with holes. The blades extend 1.6" (40.7 mm) from the body of the wrench, helping to avoid scratching of short-focal-length lenses caused by the guide flanges on our standard spanner wrenches. To reverse the blades, a 0.050" (1.3 mm) balldriver or hex key is needed. Replacement blade pairs are available separately.

The SPW801 wrench withstands a maximum torque of 80 inch-pounds (9 N•m).

 

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

contact us

Tel               +966 35823441
Fax               +966 35823441
Egypt Mobile  +2 0120 7577664
KSA Mobile     +966 545 991188
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