Electronic Light and Beep type Edge Finder Edge Sensor Model ES20
Precision alignment tool for CNC operations. Model ES20 features 20 mm shank diameter with LED and beep indication. • 10 mm tip diameter for fine edge detection • Powered by 1.5V AAAA battery for portability • Recommended spindle speed up to 500 RPM • High hardness HRC 58–62 for extended service life
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Specifications
For: ES20- Model
- ES20
- Product Type
- Electronic Edge Finder
- Detection Type
- Beep & LED Light Indication
- Shank Diameter
- 20 mm
- Tip Diameter
- 10 mm
- Body Material
- Stainless Steel / Alloy Steel
- Accuracy
- ±0.005 mm
- Battery Type
- 1.5V / LR1 / AAAA Battery
- Recommended Spindle Speed
- 0 – 500 RPM
- Mounting Type
- Collet / Chuck Mounted
- Compatible Holder
- ER Collet / Drill Chuck
- Suitable Machines
- Milling, CNC, VMC, Drilling Machines
- Approx. Net Weight
- 0.15 – 0.25 Kg
- Approx. Packing Size
- 140 × 60 × 50 mm
Construction and Durability
- Durable stainless steel body withstands harsh industrial conditions
- Alloy steel construction ensures longevity in heavy-duty use
- Resistant to coolant and oil exposure common in machine shops
- Robust design maintains calibration under repeated usage
- Built to meet the demands of professional manufacturing floors
Power and Operational Limits
- Recommended spindle speed range is 0 to 500 RPM for safety
- Powered by standard 1.5V / LR1 / AAAA battery for portability
- Low power consumption ensures long battery life during shifts
- Easy battery replacement allows for continuous production use
- Operates efficiently within standard industrial voltage ranges
Mounting and Machine Compatibility
- Compatible with ER collet and drill chuck mounting systems
- Suitable for VMC, CNC, and drilling machine applications
- Designed for seamless integration with standard spindle setups
- Works effectively across various industrial milling environments
- Supports standard tool holder configurations for quick changeovers
Precision Edge Detection Features
- Features LED light and beep signals for instant edge detection
- ±0.005 mm accuracy ensures precise setup for machining operations
- Electronic sensor technology reduces human error during alignment
- Ideal for high-precision CNC and milling operations
- Provides clear visual and audio feedback to the operator
Frequently asked
How do I know when the edge is detected?
The device triggers an LED light and audible beep signal
What is the maximum safe operating speed?
Do not exceed 500 RPM to prevent damage to the sensor
How often should the battery be replaced?
Replace when the LED brightness dims or beep weakens
Is this suitable for manual milling machines?
Yes, it is compatible with VMC, CNC, and drilling machines
More questions buyers ask
What is an electronic edge finder?
An electronic edge finder is a precision tool used in CNC and milling machines to accurately locate the edges of a workpiece relative to the spindle axis.
How does the Pentagon ES20 indicate edge detection?
The ES20 features both an LED light and an audible beep signal for instant, clear feedback when the probe touches the workpiece edge.
What is the accuracy of this edge finder?
The Pentagon electronic edge finder provides high-precision detection with an accuracy of ±0.005 mm.
What is the recommended spindle speed for this tool?
For safety and to prevent damage to the sensor, the recommended spindle speed is between 0 and 500 RPM.
What type of battery does it use?
It operates on a standard 1.5V / LR1 / AAAA battery, which is easy to replace.
Is this edge finder compatible with VMC and CNC machines?
Yes, it is specifically designed for use with VMC, CNC, and standard milling machines.
What is the shank diameter of the ES20 model?
The ES20 model comes with a 20 mm shank diameter.
Can it be used with a drill chuck?
Yes, it is compatible with both ER collet and drill chuck mounting systems.
Is the body durable for industrial use?
Yes, it is constructed from stainless and alloy steel, making it resistant to coolant, oil, and harsh workshop conditions.
Does it come with a warranty?
Pentagon provides reliable after-sales support and warranty coverage for their industrial tools.
Who should choose the Pentagon ES20 Edge Finder?
The ES20 is ideal for machinists and CNC operators who require high-precision edge alignment and reliable, instant feedback in a production environment.
How does the ES20 compare to mechanical edge finders?
Unlike mechanical finders that rely on visual observation of a wobbling tip, the ES20 provides electronic LED and beep feedback, significantly reducing human error and setup time.
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Full description
Precision alignment tool for CNC operations. Model ES20 features 20 mm shank diameter with LED and beep indication. • 10 mm tip diameter for fine edge detection • Powered by 1.5V AAAA battery for portability • Recommended spindle speed up to 500 RPM • High hardness HRC 58–62 for extended service life









