Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

TECHNIKS Collet: ER40 - Standard ER Collets
TECHNIKSStandard ER Collets

TECHNIKS Collet: ER40

The TECHNIKS Collet: ER40, 20 mm is a standard ER collet from the brand TECHNIKS, identified by manufacturer part number 04240-20. This collet is designed for use with ER40 collet chucks to hold a 20 mm diameter tool…

SKU 3G-OTH-311431

Also listed as: 0424020 · 04240 20

Brand
TECHNIKS
Item
Collet: ER40
Category
Standard ER Collets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

TECHNIKS
Manufacturer Part Number
04240-20

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

TECHNIKS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TECHNIKS Collet: ER40, 20 mm is a standard ER collet from the brand TECHNIKS, identified by manufacturer part number 04240-20. This collet is designed for use with ER40 collet chucks to hold a 20 mm diameter tool shank.

Frequently Asked Questions

What is the TECHNIKS ER40 20 mm collet used for?

The TECHNIKS ER40 20 mm collet is used to securely hold a 20 mm diameter tool shank in an ER40 collet chuck. It is commonly applied in CNC machining, milling, and drilling operations where precise tool clamping and runout control are required for consistent cutting performance.

What are the specifications of the TECHNIKS ER40 20 mm collet?

The TECHNIKS ER40 20 mm collet has manufacturer part number 04240-20. It is a standard ER collet designed for ER40 collet chucks and accommodates a 20 mm tool shank diameter. The collet is made by TECHNIKS and is suitable for general-purpose tool holding in industrial machining.

Where to buy the TECHNIKS ER40 20 mm collet worldwide?

You can source the TECHNIKS ER40 20 mm collet through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine TECHNIKS collets to procurement teams and plant engineers globally.

How to select the correct ER collet size for a 20 mm shank?

To select the correct ER collet for a 20 mm shank, choose an ER40 collet with a 20 mm bore diameter, such as the TECHNIKS 04240-20. Ensure the collet chuck is ER40 type. The collet must match both the shank diameter and the chuck taper. Always verify the manufacturer's part number for compatibility.

Used in

Common applications for TECHNIKS
CNC milling — TECHNIKS BT40 end mill holders with coolant-through-spindle for high-speed machining of steel and aluminum.
High-pressure coolant machining — TECHNIKS sealed ER20 coolant collets for deep-hole drilling and chip evacuation in aerospace components.
Precision tool holding — TECHNIKS standard ER32 collets for holding drills and reamers in automated lathe operations.
Heavy-duty milling — TECHNIKS TG150 collets for clamping large-diameter tools in roughing operations on cast iron.
Coolant-through-spindle applications — TECHNIKS plug-style ER40 coolant collets for delivering coolant to the cutting edge in multi-axis machining centers.

TECHNIKS Products

3G Electric supplies TECHNIKS standard er collets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
TECHNIKS Collet: ER40, 19 mm (MPN 04240-19)
TECHNIKS
TECHNIKS Collet: ER40, 19 mm (MPN 04240-19)
TECHNIKS Collet: ER40, 22 mm (MPN 04240-22)
TECHNIKS
TECHNIKS Collet: ER40, 22 mm (MPN 04240-22)
TECHNIKS Collet: ER40, 23 mm (MPN 04240-23)
TECHNIKS
TECHNIKS Collet: ER40, 23 mm (MPN 04240-23)
TECHNIKS Collet: ER40, 21 mm (MPN 04240-21)
TECHNIKS
TECHNIKS Collet: ER40, 21 mm (MPN 04240-21)
TECHNIKS Collet: ER40, 10 mm (MPN 04240-10)
TECHNIKS
TECHNIKS Collet: ER40, 10 mm (MPN 04240-10)
TECHNIKS Collet: ER40, 26 mm (MPN 04240-26)
TECHNIKS
TECHNIKS Collet: ER40, 26 mm (MPN 04240-26)

More from TECHNIKS

View all TECHNIKS parts
TECHNIKS Collet: ER40, 4 mm (MPN 04240-04)
TECHNIKS
TECHNIKS Collet: ER40, 4 mm (MPN 04240-04)
TECHNIKS Collet: ER25, 3 mm (MPN 04225-03)
TECHNIKS
TECHNIKS Collet: ER25, 3 mm (MPN 04225-03)
TECHNIKS Collet: ER32, 17/32 in (MPN 04232-17/32)
TECHNIKS
TECHNIKS Collet: ER32, 17/32 in (MPN 04232-17/32)
TECHNIKS Collet: ER50, 6 mm (MPN 04250-06)
TECHNIKS
TECHNIKS Collet: ER50, 6 mm (MPN 04250-06)
TECHNIKS Collet: ER16, 3/8 in (MPN 04216-3/8)
TECHNIKS
TECHNIKS Collet: ER16, 3/8 in (MPN 04216-3/8)
TECHNIKS Collet: ER16, 7/32 in (MPN 04216-7/32)
TECHNIKS
TECHNIKS Collet: ER16, 7/32 in (MPN 04216-7/32)
TECHNIKS Collet: ER40, 11 mm (MPN 04240-11)
TECHNIKS
TECHNIKS Collet: ER40, 11 mm (MPN 04240-11)
TECHNIKS Collet: ER20, 1/2 in (MPN 04220-1/2)
TECHNIKS
TECHNIKS Collet: ER20, 1/2 in (MPN 04220-1/2)