High Precision Collet set Model ER40 set with suitable collet adapter and spanner — ER40-MT3
This adapter connects MT3 machine spindles to ER40 collet systems for versatile tool holding. It features a precision ground surface and dynamic balance for stable machining. • Morse Taper MT3 shank type for spindle compatibility • M16x2.0 P draw bolt thread for secure retention • 10-11 piece collet set with 41 mm maximum outside diameter • Maximum run-out of 0.01 mm ensures high precision
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Specifications
For: ER40-MT3- Collet Type
- ER-40
- Collet Standard
- DIN 6499 / ISO 15488
- Collet Material
- Alloy Spring Steel
- Suitable Shank Type
- Morse Taper MT3
- Runout Accuracy
- ≤ 0.015 mm
- Hardness
- HRC 44–48
- Nut Type
- ER40 Precision Nut
- Surface Finish
- Precision Ground
- Balancing
- Standard Dynamic Balance
- Taper Angle
- 8° Included Angle
- Packing Size
- 380×230×75 mm
- Weight
- 3 – 5 kg
- Overall Length L
- 46 mm
- Maximum Outside Diameter D
- 41 mm
- Holder Type
- Drawbolt / Tang
- No Of Collets In Set
- 10-11 Pcs
- Draw bolt thread
- M16x2.0 P
- Machine Spindle Taper
- MT3
- Maximum Outside Diameter (D)
- 41 mm
- Maximum Run-out
- 0.01 mm
- No. of Collets in Set
- 10-11 Pcs
- Overall Length (L)
- 46 mm
- Shank type for spindle
- MT3
Configurations
Click a row to switch| Variant | Maximum Outside Diameter (D) | Holder Type | No. of Collets in Set | Overall Length (L) | Price |
|---|---|---|---|---|---|
| ER40-MT3 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹5,300 |
| ER40-MT4 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹5,400 |
| ER40-R8 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹5,600 |
| ER40-ISO30 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹5,400 |
| ER40-ISO40 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹5,900 |
| ER40-BT30 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹6,300 |
| ER40-BT40 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹6,400 |
| ER40-BT50 | 41 mm | Drawbolt / Tang | 10-11 Pcs | 46 mm | ₹6,600 |
Packaging & Handling Specifications
- Packaged in 320x280×115 mm box for safe transport
- Weight ranges from 3 – 5 kg depending on configuration
- Designed for easy storage and inventory management
- Protects precision surfaces during shipping and storage
- Suitable for industrial machine-accessories-new-16 categories
Ideal Machining Applications
- Perfect for general purpose milling and drilling tasks
- Supports quick tool changes with included spanner wrench
- Used in automotive, aerospace, and general manufacturing
- Handles various cutting tools with round shank profiles
- Enhances productivity in job shop and production environments
Operational Accuracy & Performance
- Runout accuracy maintained at ≤ 0.015 mm for precision
- Minimizes vibration during high-speed cutting operations
- Ensures consistent tool positioning for tight tolerances
- Reduces tool wear and improves surface finish quality
- Ideal for demanding CNC and manual milling applications
Taper Compatibility & Standards
- Compatible with ISO30, NT30, and Morse Taper MT3 shanks
- Adheres to DIN 6499 and ISO 15488 collet standards
- Taper angle set at 8° Included Angle for proper fit
- Ensures interchangeability across industrial machine tools
- Adapter ensures secure connection to the spindle
Material & Construction Quality
- Constructed from high-grade Alloy Spring Steel for longevity
- Heat treated to achieve hardness between HRC 44–48
- Surface finish is precision ground for smooth operation
- Features ER40 Precision Nut for secure tool clamping
- Standard Dynamic Balance ensures stability at high speeds
Precision Collet System Overview
- High precision collet set available in ER32 and ER40 models
- Includes suitable collet adapter and spanner wrench for setup
- Designed for milling machines with various spindle tapers
- Holds round-shank tools like end mills, drills, and reamers
- Offers excellent concentricity for accurate machining
More questions buyers ask
What is an ER40 collet set?
An ER40 collet set is a collection of collets, a chuck, and a nut used to hold cutting tools in a milling machine or lathe. The ER40 size is a standard size, and it can hold tools with shanks from 3mm to 26mm in diameter.
What are the main applications of an ER40 collet set?
ER40 collet sets are used for a wide range of machining applications, including milling, drilling, reaming, tapping, and grinding. They are ideal for holding a variety of cutting tools securely and with high precision.
What is the holding range of the PENTAGON ER40 collet set?
The PENTAGON ER40 collet set has a holding range of 3mm to 26mm, allowing it to accommodate a wide variety of cutting tools.
What material is the PENTAGON ER40 collet set made of?
The collets are made from high-grade alloy spring steel, ensuring durability and a strong grip on the tool.
What is the runout accuracy of the PENTAGON ER40 collet set?
The PENTAGON ER40 collet set has a runout accuracy of ≤ 0.015 mm, which is essential for high-precision machining.
Is the PENTAGON ER40 collet set suitable for CNC machines?
Yes, the PENTAGON ER40 collet set is suitable for use in both manual and CNC machines.
What is included in the PENTAGON ER40 collet set?
The set includes a range of ER40 collets, a collet chuck (adapter) in the taper of your choice, and a spanner for tightening the nut.
What is the hardness of the collets?
The collets have a hardness of HRC 44-48, which provides a good balance of strength and flexibility.
Does the set come with a warranty?
Yes, all PENTAGON products come with a standard 1-year warranty against manufacturing defects.
Can I get a GST invoice for my purchase?
Yes, we provide a GST invoice for all purchases. You can claim input tax credit on your purchase.
Who should choose the ER40-MT3 variant?
The ER40-MT3 variant is ideal for users with milling machines or lathes that have a Morse Taper 3 spindle. It is a common taper for smaller to medium-sized machines.
Who should choose the ER40-MT4 variant?
The ER40-MT4 variant is suitable for machines with a Morse Taper 4 spindle, which is typically found on larger and more robust machines than those with an MT3 spindle.
Who should choose the ER40-R8 variant?
The ER40-R8 variant is designed for use in milling machines with an R8 taper, which is common in Bridgeport-style milling machines.
Who should choose the ER40-ISO30 variant?
The ER40-ISO30 variant is for machines with an ISO30 taper spindle. This is a common taper in modern CNC milling machines and offers a good balance of speed and rigidity.
Who should choose the ER40-ISO40 variant?
The ER40-ISO40 variant is for use in machines with an ISO40 taper spindle. This is a larger and more rigid taper than ISO30, making it suitable for heavier cutting operations.
Who should choose the ER40-BT30 variant?
The ER40-BT30 variant is designed for CNC machines with a BT30 spindle. BT tapers are known for their high-speed capabilities and are common in modern machining centers.
Who should choose the ER40-BT40 variant?
The ER40-BT40 variant is for machines with a BT40 spindle. This is a very common and versatile taper used in a wide range of CNC milling machines for both general purpose and high-speed machining.
Who should choose the ER40-BT50 variant?
The ER40-BT50 variant is the largest and most rigid option in this set, suitable for heavy-duty machining on large CNC machines with a BT50 spindle.
What is the difference between MT and BT tapers in the PENTAGON ER40 set?
Morse Taper (MT) is an older, self-holding taper commonly found on manual lathes and drill presses. BT taper is a more modern, steeper taper used in CNC milling machines, designed for higher speeds and easier tool changes.
How do I choose between ISO and BT tapers for my machine?
ISO and BT tapers are similar in size and performance. The main difference is the flange design. You should choose the taper that matches your machine's spindle. Check your machine's documentation to be sure.
Which PENTAGON ER40 collet set variant offers the widest compatibility?
Compatibility depends entirely on your machine's spindle. However, tapers like MT3, R8, and BT40 are very common in workshops across India, making them popular choices.
Are all variants of the PENTAGON ER40 collet set suitable for high-speed machining?
While all variants are made to high-precision standards, the BT and ISO taper variants are generally preferred for high-speed CNC machining due to their design and balancing.
What is the price difference between the various PENTAGON ER40 collet set variants?
The price varies slightly based on the adapter taper. Generally, larger and more complex tapers like BT50 may be priced higher than smaller tapers like MT3. Please check the current prices for each variant on our website.
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Full description
This adapter connects MT3 machine spindles to ER40 collet systems for versatile tool holding. It features a precision ground surface and dynamic balance for stable machining. • Morse Taper MT3 shank type for spindle compatibility • M16x2.0 P draw bolt thread for secure retention • 10-11 piece collet set with 41 mm maximum outside diameter • Maximum run-out of 0.01 mm ensures high precision