---
product_id: 452655471
title: "RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine"
brand: "rattmmotor"
price: "Bs.2203"
currency: BOB
in_stock: true
reviews_count: 3
category: "Rattmmotor"
url: https://www.desertcart.bo/products/452655471-rattmmotor-normally-open-mach3-cnc-automatic-tool-sensor-gauge-changer
store_origin: BO
region: Bolivia
---

# 0.001mm ultra-precise positioning 24V DC power, stable output IP67 dust & waterproof durability RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine

**Brand:** rattmmotor
**Price:** Bs.2203
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate Your CNC Game with Precision That Never Quits

## Quick Answers

- **What is this?** RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine by rattmmotor
- **How much does it cost?** Bs.2203 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/452655471-rattmmotor-normally-open-mach3-cnc-automatic-tool-sensor-gauge-changer)

## Best For

- rattmmotor enthusiasts

## Why This Product

- Trusted rattmmotor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Overtravel Alarm:** Instant alerts prevent costly tool damage, keeping your workflow smooth and worry-free.
- • **3 Million Contact Lifecycles:** Engineered for longevity, reducing downtime and maintenance costs for busy professionals.
- • **Pinpoint Precision at 0.001mm:** Achieve flawless tool length setting and wear detection with micron-level accuracy.
- • **Built to Endure with IP67 Protection:** Dustproof and waterproof design ensures relentless performance even in coolant and metal shavings.
- • **Seamless Integration with CNC Systems:** Direct NC program input without need for amplifiers, minimizing setup hassle and errors.

## Overview

The RATTMMOTOR Mach3 CNC Automatic Tool Sensor Gauge is a high-precision, 4-wire tool setter designed for CNC routers and engravers. Featuring a 5mm stroke and 0.001mm repeat positioning accuracy, it offers durable IP67-rated dust and waterproof protection, a robust 3 million contact life, and a smart overtravel alarm to safeguard your tools. Its direct NC output simplifies integration, making it an essential upgrade for professional-grade machining accuracy and reliability.

## Description

Package include:1 x CNC Router Z Axis High Tool SettingSpecification: Output mode: NC(normally closed) Pre trip: Almost 0Stroke: 5mmRepeat positioning accuracy: 0.001mm(operation speed:50-200mm/min) Life: 3000000 times.Contact force: 1.5NOuter shell: Grinding 4S. Protection: IP67Cutter head: Diameter 20mm, hard carbideShock rating: 20mA(MAX) DC24V recommended value(10mA)resistive load Cable: 1.5M 2-cell tensile strength 30N Minimum bending radius R7 Protection Tube: 1.3M (Minimum bending radius R25)Exceed the specifications: NC(Normally closed),distance signal about 5mm Shock rating: DC24V 20mA(MAX) 10mA(Resistive load).Precautions for use:The contact cannot exceed the stroke(stroke is 5mm) of the tool setting tool, otherwise the tool will easily damage the tool setting tool.Do not release it immediately when touching the tool face by hand to avoid damaging the internal structure of the tool setting tool and affecting the service life and efficiency.After the tool is finished, the knife must be lifted vertically to leave the contact surface. Do not move it laterally. This should be easy to damage the tool.

Review: This arrived dead. I decided to repair it rather than return. The internal mechanism is two microswitches so the primary sensor is not a piezoelectric as implied by the circuit diagram. One of the wires was loose. I resoldered them all as they were soldered at an angle and almost short circuiting and added some insulation. Also adjusted the microswitch position. Mechanically it is not terrible.
Review: This is not a Normally Open tool height sensor like the title said. I have tested it and both the main and the overtravel contacts are Normally Closed. I have paid premium price thinking that I am getting the correct sensor. Now my machine build is delayed! .... False advertising. Buyers beware!

## Features

- 【Description】The tool setting instrument is a special tool setting instrument for the engraving machine machining center machine. The output signal of the tool setting instrument is received by the numerical control system and then the tool length setting, tool wear detection and tool breakage are detected by the program control. In the case of no vibration and malfunction, the thermal deformation of the machine can be corrected according to the rated voltage and current and the specified speed.
- 【Parameter】This is a normally open 4-wire high-precision tool setting instrument with a stroke of 5mm. The positioning accuracy is 0.001mm, the contact life is up to 3 million times, the contact force is 1.5N, and the contact rating: DC24V 20mA.
- 【Material】The housing material of this tool setter is made of 4S grinding grade material. The bottom magnet design can be directly connected to the machine and firmly adsorbed to the body. The contact material is made of super hard alloy, the design is exquisite and the installation is simple.
- 【Feature-1】This tool setting instrument is designed with dustproof and waterproof structure, which can still have strong durability under the condition of coolant and iron filings. It does not need a built-in amplifier and will not be caused deviations by the location temperature and power supply voltage fluctuations of the tool setting instrument, which can be directly input to the NC program.
- 【Feature-2】The tool setter will send out an alarm signal in time when it is over-travel to avoid other troubles caused by equipment operation. Moreover, the tool setter has strong anti-interference. The protruding sharp corner of the tool directly touches the tool tip related to the machining size, detects its value and size, and outputs the signal. It has higher accuracy than the average value obtained by converting the amount of light and electricity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LK93NTC |
| Are batteries included? | No |
| Best Sellers Rank | #151,357 in Home Improvement ( See Top 100 in Home Improvement ) #107 in Engraving Tools |
| Brand | RATTMMOTOR |
| Current Rating | 20 Milliamps |
| Customer Reviews | 3.1 3.1 out of 5 stars (11) |
| Date First Available | 7 December 2020 |
| Global Trade Identification Number | 00713721466467 |
| Item Dimensions LxWxH | 15 x 7 x 11 Centimeters |
| Item Height | 11 Centimeters |
| Item Weight | 450 g |
| Item Width | 7 Centimeters |
| Item dimensions L x W x H | 15 x 7 x 11 Centimeters |
| Item model number | H:65 |
| Manufacturer | RTM |
| Material | Aluminium |
| Maximum Supply Voltage | 24 Volts (DC) |
| Measurement Accuracy | 0.001mm |
| Measuring Range | 0mm to 5mm |
| Model number | H:65 |
| Mounting Type | Surface Mount |
| Net Quantity | 1.0 Count |
| Number of Memory Sticks | 1 |
| Output Type | NPN |
| Power Source | DC |
| Product Dimensions | 15 x 7 x 11 cm; 450 g |
| Sensing Distance | 5 Millimetres |
| Specific Uses For Product | CNC machining processes |
| Style | Modern |
| UPC | 713721466467 619191755172 769135849716 |
| Upper Temperature Rating | 100 Degrees Celsius |
| Voltage | 24 Volts |

## Product Details

- **Brand:** RATTMMOTOR
- **Item Weight:** 0.45 Kilograms
- **Item dimensions L x W x H:** 15 x 7 x 11 Centimeters
- **Material:** Aluminium
- **Style:** Modern

## Images

![RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine - Image 1](https://m.media-amazon.com/images/I/415t-dx7r+L.jpg)
![RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine - Image 2](https://m.media-amazon.com/images/I/41TP+A0qUnL.jpg)
![RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine - Image 3](https://m.media-amazon.com/images/I/41mZj2+fbAL.jpg)
![RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine - Image 4](https://m.media-amazon.com/images/I/518H4MxlEqL.jpg)
![RATTMMOTOR Normally Open Mach3 CNC Automatic Tool Sensor Gauge Changer CNC Z Axis Probe Tool Touch Sensor Setter Setting 4 Wires for CNC Router Engraver Machine - Image 5](https://m.media-amazon.com/images/I/51gOO8B-aAL.jpg)

## Customer Reviews

### ⭐⭐ Review
*by A***G on 4 March 2024*

This arrived dead. I decided to repair it rather than return. The internal mechanism is two microswitches so the primary sensor is not a piezoelectric as implied by the circuit diagram. One of the wires was loose. I resoldered them all as they were soldered at an angle and almost short circuiting and added some insulation. Also adjusted the microswitch position. Mechanically it is not terrible.

### ⭐ Review
*by I***O on 10 December 2025*

This is not a Normally Open tool height sensor like the title said. I have tested it and both the main and the overtravel contacts are Normally Closed. I have paid premium price thinking that I am getting the correct sensor. Now my machine build is delayed! .... False advertising. Buyers beware!

### ⭐ Review
*by K***L on 7 December 2021*

not as described. this tool setter doesn't have a led indicator or set screws to level the touch off pad. also the pad has a bit of wiggle to it as well.

## Frequently Bought Together

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-04*