3–73 mm Adjustable Retaining-Ring Spanner and Pin Set

Round-pin and flat-blade ends with removable double-ended pins and a source-listed 9 N·m maximum torque

Source-listed 3–73 mm adjustment range
One round-pin end and one flat-blade end for hole or slot interfaces
Knurled handle, knurled adjustment knob, and locking screw

Available models: 2 standard models
Lead time: Confirmed after model and quantity review
Purchase method: RFQ by model

Reference price

$71.36 - $458.24

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Models and availability

2 models. Select one or more models for a combined RFQ.

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Model	Lead time	Reference price	Selection
ZFG-KK RFQ	2–7 days	$458.24
ZFG-KK-GS RFQ	2–7 days	$71.36

ZFG-KK
RFQ
Lead time
2–7 days
Reference price
$458.24
ZFG-KK-GS
RFQ
Lead time
2–7 days
Reference price
$71.36

Showing 2 of 2 models

Product overview and selection guidance

Product-family scope, interfaces, selection limits, and supply notes.

The adjustable retaining-ring spanner engages mating ring holes or slots. The source specifies a 3–73 mm adjustable pin spacing. ZFG-KK selects the complete tool; ZFG-KK-GS selects a pair of replacement pins. These are different supply selections.

Adjustment and engagement

A knurled adjustment wheel changes the spacing between the two pins, which are secured by set screws. The source describes removable pins with one end for round holes and the other for straight slots. Check hole diameter, slot width, engagement depth and tool access. The 3–73 mm spacing range is not pin diameter.

Assembly and use

Support the workpiece and ensure both pins engage adequately before turning. The cover claims a maximum withstand torque of 9 N·m without specifying verification conditions. This promotional value is not a recommended lens-retaining-ring tightening torque. Follow the requirements for the actual ring and optical assembly.

Material and accuracy

The source identifies stainless steel but does not give alloy grade, hardness, pin tolerances or a torque-test method. Check pin model and condition; wear or slipping can affect engagement with the retaining ring.

Supplied items

ZFG-KK-GS identifies the source’s pair of replacement pins and does not include the complete spanner. Confirm the pin and accessory list supplied with ZFG-KK. Lenses, retaining rings and installation services are not included automatically. Loose pins pictured beside the tool do not define the included-item list for both SKUs.

Selection checklist

Complete tool or replacement-pin selection

Ring-hole diameter, slot width and spacing

Engagement depth and access

Ring assembly torque requirement

Quantity and included-item list

To be confirmed

Pin geometry and alloy grade

Verification conditions for the 9 N·m promotional claim

Pins included with the complete spanner

Procurement and technical information

Select a model so we can confirm pricing, availability, lead time, and required documents.

Procurement method

Formal RFQ by model

Lead time

Confirmed after model and quantity review

Technical documents

Request drawings and specifications with your RFQ

Typical applications

Installing or removing retaining rings in lens tubes and optomechanics
Service-tool selection for round-hole and slotted retaining rings
Laboratory optomechanical assembly and maintenance benches
General adjustable-span retaining-ring tool RFQs

Product highlights

Source-listed 3–73 mm adjustment range
One round-pin end and one flat-blade end for hole or slot interfaces
Knurled handle, knurled adjustment knob, and locking screw
Two source options: complete spanner and one replacement pin set