Micrometer accessory for analogue instruments, suxing Micrometer Ratchet Stop replaces an obsolete metal ratchet with a new plastic assembly for the end of the spindle. Workshop technicians and home machinists gain repeatable spindle control and a simple swap when servicing compatible micrometers. Is this the right replacement to keep older Mitutoyo instruments in service?
⚡ At a Glance
- • Fit and compatibility: M4X0.5 thread shank, compatible with a range of Mitutoyo M310 and M320 series models listed in the description
- • Best for: Workshop technicians and machinists replacing worn ratchets on analogue micrometers
- • Not ideal for: Users who prefer an original metal ratchet rather than a plastic replacement
Complete ratchet assembly for the end of the spindle, supplied as a single unit. The new plastic assembly replaces the original metal version that is no longer available.
Straightforward installation, with an M4X0.5 threaded shank
Threaded M4X0.5 shank matches the spindle thread used on the Mitutoyo models listed in the description, enabling a screw-in fit at the end of the spindle. The assembly arrives as a ready-made ratchet unit, removing the need to assemble separate parts.
Quick on-bench swaps restore ratchet action without complex disassembly, reducing downtime during routine maintenance and repairs.
Restored ratchet action, with a complete end-of-spindle assembly
Ratchet assembly is designed for the end-of-spindle position on analogue micrometers, replicating the tactile ratchet mechanism used to control applied torque during measurement. The mechanism is supplied pre-assembled to match the expected function.
Consistent spindle behaviour returns after fitting, helping maintain repeatable measurements and routine feel during use.
Keeps legacy instruments serviceable, with a plastic replacement for discontinued metal parts
Description states the new plastic assembly replaces the original metal component that is no longer available, offering an aftermarket option for discontinued parts. Compatibility is listed for a range of Mitutoyo M310 and M320 variants.
Extends the working life of compatible Mitutoyo micrometers when original spare parts cannot be sourced from the manufacturer.
✨ The 4 Key Reasons for suxing Micrometer Ratchet Stop
- Complete Ratchet Assembly - Ready-to-fit unit avoids sourcing multiple small components
- M4X0.5 Thread - Standard thread interface for direct mounting to compatible spindles
- Single Piece Packaging - One ratchet included for immediate bench repair
- Aftermarket Replacement - Keeps instruments usable when original metal parts are discontinued
📋 Technical Details at a Glance
- Category: BISS
- Thread: M4X0.5
- Compatibility: Fits Mitutoyo M310 and M320 series models listed in the description
- Fits Models: M310-25, M310-50, M310-75, M310-100, M320-25, M320-50, M310-1" , M310-2" , M310-3" , M310-4" , M320-1" , M320-2" , etc.
- Material: Plastic assembly replacing original metal
❓ Frequently Asked Questions
Q: Will this fit my Mitutoyo micrometer?
A: Compatibility is stated for Mitutoyo M310 and M320 series examples, including M310-25, M310-50, M310-75, M310-100 and various inch versions listed in the description.
Q: Is this an original Mitutoyo part?
A: No, the item is a suxing replacement plastic assembly, intended to replace the original metal ratchet which is no longer available.
Q: What comes in the package?
A: The package includes one complete ratchet assembly for the end of the spindle.
🏆 Our Verdict
The suxing Micrometer Ratchet Stop is suitable for workshop technicians and machinists who need a direct spare part to maintain Mitutoyo analogue micrometers. Availability as a ready-made plastic replacement for a discontinued metal ratchet keeps legacy instruments serviceable. Practical long-term value comes from restoring measurement feel and function without needing original manufacturer parts.
