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Spanner Wrenches


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

SPW301

For Mounted Aspheric Lenses

SPW801

Adjustable Spanner Wrench

SPW602

Graduated SM1 Spanner Wrench

SPW501

For Tightening Ø1/2" or
Ø1" Optical Posts

SPW909

For SM1 and C-Mount Adapters

SPB2

SM2 Spanner Bit

SPW502 and SPW503 wrenches are designed
to tighten slotted locking rings for 
adjustable lens tubes and couplers.

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Thorlabs' Spanner Wrenches are used to install and adjust retaining rings in lens tubes, lens mounts, diode mounts, and other optomechanics. They are also useful when positioning thread adapters for aspheric lenses, connectorized fibers, and fiber collimators and installing locking collars on adjuster screws

Our standard spanner wrenches provide safe, simple adjustment of retaining rings without risking damage to optical elements. They feature aluminum, diamond-knurled grips and a hollow interior that allows a beam to pass through while the part is adjusted. Stainless steel flanges exhibit reduced wear compared to aluminum flanges and are designed to a low-tolerance fit for our retaining rings. The lack of a surface coating on the flanges minimizes dust or other particulates contaminating the surface of a lens.

We also offer stainless steel spanner bits with a 1/4" hex shank for our SM05, SM1, SM2, and SM3 standards similar to our standard spanner wrenches. A kit is also offered that includes spanner bits for the SM05, SM1, and SM2 standards; a driver handle with a 1/4" hex socket; and a case. The SM3 spanner bit is not included with this kit.

For customers with specialized retaining rings, adapters, or mounts, Thorlabs offers the SPW801 Adjustable Spanner Wrench, which features an adjustable spanning range as well as long blades that extend 1.6" (40.7 mm) from the body of the wrench.

The SPW501 stainless steel spanner wrench is designed for tightening Ø1/2" and Ø1" optical posts, and the SPW502 and SPW503 spanner wrenches are designed for slotted locking rings, which are compatible with our adjustable lens tubes and couplers.


Posted Comments:
christian.peuntinger  (posted 2018-09-06 12:01:32.07)
A spanner wrench like the SPW602 but for SM36RR and SM42RR retaining rings would be very helpful for us. So I'd like to suggest them as a new product.
mmcclure  (posted 2018-09-06 08:07:36.0)
Hello, thank you for contacting Thorlabs. I have added your product idea to our internal forum. As an alternative, we offer the SPW801 adjustable spanner wrench, which is compatible with SM36RR and SM42RR retaining rings.
cbrideau  (posted 2018-05-25 10:10:08.2)
A spanner wrench kit in a case with markings for each wrench would be very helpful!
llamb  (posted 2018-06-04 10:57:14.0)
Thank you for your feedback! I will add this to our internal product forum for further discussion.
Thorlabs  (posted 2010-09-03 23:15:53.0)
Response from Javier at Thorlabs to lincoln.turner: thank you very much for your feedback. We will add a version of the SPW909 for SM05 adapters to our list of upcoming products. I will make sure that you receive a prototype unit as soon as it is available.
lincoln.turner  (posted 2010-09-03 10:01:01.0)
I would like to suggest another, similar product you could make which would be very useful in our lab: A spanner wrench like the SPW909 which would fit the S05TM09 lens cell adapter. We realise that you sell adjustable spanner wrenches which fit the S05TM09, however the lens cell adapter cannot then be screwed deep within lens tube, which is what we need to be able to do, because the points of the adjustable spanner angle outwards!
Laurie  (posted 2009-05-05 13:50:17.0)
Additional response from laurie at Thorlabs to friedemann: I thought that you might be interested in knowing that your suggestion to engrave a scale onto the outer diameter of our SPW602 was recently implemented. Thank you again for your thoughtful and valuable feedback.
Laurie  (posted 2008-04-01 11:01:52.0)
Response from Laurie at Thorlabs to friedemann: Thank you for your suggestion concerning our spanner wrenches. We always appreciate hearing from our customers about ways to improve our product line. I will post this suggestion in our internal forum so that it can be discussed by our mechanical engineers and possibly implemented. We appreciate your taking the time to provide us with this feedback, and thank you for your interest in our products!
friedemann  (posted 2008-04-01 10:30:16.0)
I have a suggestion concerning your spanner wrench SPW602 and his relatives. Could you engrave a millimetric (or imperial) scale onto its outer side ? This would allow to insert lens retaining rings at a precisely defined position in a tube and would be very useful. Best regards, Friedemann

Spanner Wrenches for Retaining Rings

CT101 Application
Click to Enlarge

Stackable spanner wrenches, like the SPW603, can be fitted together to reach retaining rings in long lens tubes.
Spanner Wrench Application
Click to Enlarge

An SPW602 spanner wrench is used to place an optic in a lens tube via a retaining ring. This spanner wrench features an engraved scale to indicate spanner wrench depth.
  • Individual Sizes for Standard Retaining Rings
  • Knurled Handle for Improved Grip
  • Stackable Spanner Wrenches for Reaching Retaining Rings in Longer Lens Tubes

These spanner wrenches enable adjustment or installation of many of our standard retaining rings. The hollow construction of each spanner wrench allows the retaining ring to be adjusted without obscuring the beam path. They feature knurled handles for improved grip as well as flanges to keep the retaining ring on the end of the spanner wrench while inserting or removing the ring.

As shown to the right, the SPW602 features an engraved scale to indicate spanner wrench depth in both imperial and metric increments (0.1" and 0.5 mm, respectively), thereby enabling precise positioning of optics.

For retaining rings not covered by these cylindrical spanner wrenches, please see the SPW801 Adjustable Spanner Wrench sold at the bottom of the page. The SPW801 features an adjustable spanning range as well as long blades that extend 1.6" (40.7 mm) from the body of the wrench. Hence, for lenses with a high radius of curvature, we recommend using the SPW801 over the cylindrical spanner wrenches, whose guide flanges may come into contact with the lens.

 Item # SPW205 SPW206 SPW207 SPW208 SPW209 SPW210 SPW211 SPW603 SPW606 SPW602 SPW607 SPW604 SPW605
Compatible
Retaining Rings
SM5RR SM6RR SM7RR SM8RR SM9RR SM10RR SM11RR SM05RR,
SM05RRC,
SM05LTRR,
SM05PRR,
POLARIS-SM05RR
SM1RR,
SM1RRC,
SM1LTRR,
POLARIS-SM1RR
SM1RR,
SM1RRC,
SM1LTRR,
POLARIS-SM1RR
SM30RR SM2RR,
SM2RRC,
SM2LTRR,
POLARIS-SM2RR
SM3RR
Feature Stackable: One End of Spanner Wrench Fits to End of Other Spanner
Wrench to Reach Retaining Rings in Longer Lens Tubes
- Engraved Scale - - -
Length 1.00" 1.00" 1.00" 1.00" 1.00" 1.00" 1.00" 1.00" 1.00" 3.88" 4.35" 4.35" 4.35"
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPW205 Support Documentation
SPW205Spanner Wrench for SM5RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW206 Support Documentation
SPW206Spanner Wrench for SM6RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW207 Support Documentation
SPW207Spanner Wrench for SM7RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW208 Support Documentation
SPW208Spanner Wrench for SM8RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW209 Support Documentation
SPW209Spanner Wrench for SM9RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW210 Support Documentation
SPW210Spanner Wrench for SM10RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW211 Support Documentation
SPW211Spanner Wrench for SM11RR Retaining Rings, Length = 1.00"
$18.00
Today
SPW603 Support Documentation
SPW603Spanner Wrench for SM05-Threaded Retaining Rings, Length = 1.00"
$24.50
Today
SPW606 Support Documentation
SPW606Customer Inspired! Spanner Wrench for SM1-Threaded Retaining Rings, Length = 1.00"
$26.75
Today
SPW602 Support Documentation
SPW602Spanner Wrench for SM1-Threaded Retaining Rings, Graduated Scale with 0.1"
(2.5 mm) Increments, Length = 3.88"
$26.75
Today
SPW607 Support Documentation
SPW607Customer Inspired! Spanner Wrench for SM30-Threaded Retaining Rings, Length = 4.35"
$41.00
Today
SPW604 Support Documentation
SPW604Customer Inspired! Spanner Wrench for SM2-Threaded Retaining Rings, Length = 4.35"
$44.50
Today
SPW605 Support Documentation
SPW605Spanner Wrench for SM3-Threaded Retaining Rings, Length = 4.35"
$78.25
Today

Spanner Bits for SM-Threaded Retaining Rings

Spanner Bit and Torque Driver Application
Click to Enlarge

The spanner bits can be used with Thorlabs' TD24 Torque Driver, allowing a precise amount of torque to be applied. This is ideal for our SM-threaded Polaris™ Mirror Mounts, which have specific recommended mounting torques.
  • Bits Available for SM05, SM1, SM2, and SM3 Retaining Rings
  • Fits Any Standard 1/4" Hex Socket
  • Kit Offered with SM05, SM1, and SM2 Spanner Bits; Driver Handle with 1/4" Hex Socket; and Case

Spanner Bits allow SM-threaded 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 a manual driver handle, such as the one included in the kit below.

Spanner Bit and Driver Application
Click to Enlarge
The SPB600 Spanner Bit Kit Comes with a Handle with a 1/4" Hex Socket

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.

The SPB600 Spanner Wrench Bit Kit includes bits for SM05 (0.535"-40), SM1 (1.035"-40), and SM2 (2.035"-40) retaining rings; a driver handle with a 1/4" hex socket; and a carrying case. In addition, the case has a location to house the SM3 (3.035"-40) spanner bit available separately below.

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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPB600 Support Documentation
SPB600Spanner Wrench Bit Kit with SM05, SM1, and SM2 Spanner Bits
$172.38
Today
SPB05 Support Documentation
SPB05SM05 Spanner Bit
$24.99
Today
SPB1 Support Documentation
SPB1SM1 Spanner Bit
$39.78
Today
SPB2 Support Documentation
SPB2SM2 Spanner Bit
$52.79
Today
SPB3 Support Documentation
SPB3SM3 Spanner Bit
$78.03
Today

Spanner Wrenches for Externally Threaded Adapters

  • SPW908: For Externally SM05-Threaded Adapters (See Table Below)
  • SPW909: For Externally SM1- or C-Mount-Threaded Adapters (See Table Below)
  • 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, please see the SPW301 Spanner Wrench sold below.

Spanner Wrench Compatibility
Spanner Wrench Item #SPW908SPW909
Adapter Type Adapter Item #
Aspheric Lens S05TM06, S05TM08S05TM09 S1TM06, S1TM08, S1TM09, S1TM10S1TM12
Connectorized Fiber N/A CMTFC, CMTFCA, CMTSMA, S1FCA, SM1FC, SM1FCA, SM1SMASM1ST
Fiber Collimator N/A AD9.5F, AD11F, AD12FSM1PT
Reflective Fiber Collimators N/A RC02, RC04, and RC08 Versions
LED N/A S1LEDM
Laser Diode N/A S1LM38S1LM46, S1LM56S1LDM9
IR Bulb N/A HEPM
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPW908 Support Documentation
SPW908Customer Inspired! Spanner Wrench for SM05-Threaded Adapters, Length = 1"
$24.50
Today
SPW909 Support Documentation
SPW909Spanner Wrench for SM1-Threaded Adapters, Length = 1"
$29.00
Today

Spanner Wrenches for Mounted Aspheric Lenses and Diode Retaining Rings

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

The webpages for our aspheric lenses indicate which spanner wrench the lens is compatible with.

  • 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 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.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPW306 Support Documentation
SPW306Spanner Wrench for an M6 x 0.5 Optics Housing, Length = 1"
$15.30
Today
SPW308 Support Documentation
SPW308Spanner Wrench for an M8 x 0.5 Optics Housing, Length = 1"
$16.30
Today
SPW301 Support Documentation
SPW301Spanner Wrench for an M9 x 0.5 Optics Housing, Length = 1"
$14.30
Today
SPW302 Support Documentation
SPW302Spanner Wrench for an M12 x 0.5 Optics Housing, Length = 1"
$14.80
Today

Spanner Wrenches for Adjuster Stop Collars

Inner Surface Contouring
Click for Details

Through Holes Give Access to Adjuster Screws
Using a Hex Wrench to Provide Additional Torque
Click to Enlarge

The end of the SPW403 accepts a 5/64" hex wrench, which can be used to provide additional torque.
  • Designed for use with our Adjuster Screw Locking Collars
  • SPW403: Compatible with the F10SC1-5 M2.5 x 0.20 Locking Collar and FiberPort Zθ Locking Collars
  • SPW401: Compatible with the F19SC1 3/16"-100 Locking Collar
  • SPW402: Compatible with the F25SC1 1/4"-80 Locking Collar

The SPW403, SPW401, and SPW402 spanner wrenches are designed for use with our locking collars for M2.5 x 0.20, 3/16"-100, and 1/4"-80 adjuster screws, respectively. The SPW403 can also tighten or loosen the Zθ locking collars on our FiberPort collimators. The spanner wrenches are 0.75" (SPW403) or 1.50" (SPW401 and SPW402) long, have a knurled grip, and are constructed of 303 stainless steel. The hollow construction allows an adjuster to pass through the entire length of the spanner wrench.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPW403 Support Documentation
SPW403Spanner Wrench for FiberPort Zθ Locking Collars and F10SC1-5 M2.5 x 0.20 Locking Collars
$25.50
Today
SPW401 Support Documentation
SPW401Spanner Wrench for F19SC1 3/16"-100 Locking Collars
$25.50
Today
SPW402 Support Documentation
SPW402Spanner Wrench for F25SC1 1/4"-80 Locking Collars
$25.50
Today

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 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. Hence, compared to our cylindrical spanner wrenches sold above, the SPW801 is ideal for securing lenses with a high radius of curvature because the guide flanges on the cylindrical spanner wrenches may come into contact with the lens. 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).

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPW801 Support Documentation
SPW801Adjustable Spanner Wrench
$98.00
Today
SPW102 Support Documentation
SPW102Adjustable Spanner Wrench, Replacement Blade Set
$28.50
Today

Spanner Wrenches for Locking Rings and Optical Posts


Click to Enlarge

Slotted locking rings for adjustable lens tubes can be tightened using the SPW502 and SPW503 wrenches.

Click to Enlarge

Ø1" posts with slots or torque holes can be tightened using the SPW501 wrench.

SPW501 Spanner Wrench
The SPW501 Spanner Wrench is designed for tightening Ø1" RS posts with torque slots, as illustrated in the photo to the right. It can also be used to tighten Ø1/2" TR posts and Ø1" RS posts with through holes. The wrench is designed to fit into the slot or through hole and provide leverage for tightening or loosening the post when mounting the post directly to a tapped hole. Please use minimal force when tightening to prevent binding due to overtightening.

SPW502 and SPW503 Spanner Wrenches
The SPW502 Spanner Wrench is designed to tighten or loosen slotted locking rings for adjustable SM05, SM1, and C-Mount lens tubes and couplers (Item # SM05NT1, SM1NT1, and CMNT1, respectively). The SPW503 Spanner Wrench is compatible with SM2 slotted retaining rings (Item # SM2NT1). The curved end of each spanner wrench is designed to fit into a slot on the locking ring and provides leverage for tightening or loosening the locking ring. Please use minimal force when tightening to prevent binding due to overtightening.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SPW501 Support Documentation
SPW501Spanner Wrench for Ø1/2" Posts and Ø1" Posts
$16.40
Today
SPW502 Support Documentation
SPW502Spanner Wrench for Slotted SM05, SM1, and C-Mount Locking Rings
$16.40
Today
SPW503 Support Documentation
SPW503Spanner Wrench for Slotted SM2 Locking Rings
$19.40
Today
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