Name: BT40-ER16-100 ER STYLE COLLET CHUCK
Brand: Indexa
SKU: IND1442800K
Price: 103.53 EUR
Availability: InStock

Collet Chucks

Collets, or collet chucks as they're sometimes known, are an integral part of production in a wide range of sectors. Delivering reliable hold and alignment to a workpiece or tool, they're available in a variety of sizes as singles or in collet sets with multiple sizes to suit your needs.
Take a look at what Cromwell can offer you from high-quality and reliable brands like Indexa®, Parweld® and our own brand, Kennedy®.
What is a collet?
A collet is a variation of a chuck. It features a tapered collar that tightens around the workpiece or tool to keep it securely in place before work begins.
Why use a collet?
A collet features a cylindrical internal surface and a conical outer surface. When tightened, it reduces in diameter and exerts a compressive force onto an object to hold it securely. This ensures a sustained and secure hold on the workpiece for accurate alignment.
When are collets used? 
Collets are a natural fit for woodworking and metalworking, as they exert the clamping force required for holding router bits and cutting tools in place. They also feature heavily in large scale manufacturing and are used in CNC machines for mass production. Additionally, collets are used in machine and automotive engines where valves and other internal mechanisms require a consistent clamping force for smooth operations.
Collet types 
Collets are available in two types, one holds a workpiece, the other, a tool. There are, however, a range of styles for different uses and tools.
ER style		Used for milling and drilling, this series clamps objects according to a size range.
DNA style	an acronym of Dead Nuts Accurate, this style is ideal for small-sized tools.
TG style short for tremendous grip, this style's 4° taper delivers a tighter grip than the ER style.
SYOZ style	made from high carbon steel and conforms to DIN 6388, for use on a CNC machine.
DA style	double angle collets are engineered for most tapping, drilling and reaming applications.

Considerations when choosing a collet
•	Sizing - Ensure the collet and tool diameter or machine spindle match. Using the wrong sizing can put the collet under stress and reduce the strength of compression.
Collet jargon buster
We want you to be able to find exactly what you're looking for. So to make it easy, we've explained a key standard to help you understand the range of collets and their applications a little better.
What does the standard DIN ISO 15488:2006-01?
DIN ISO 15488:2006-01 refers to collets that feature a setting angle of 8° and replaces DIN 6499:2002-04
Let's break it down...
DIN - This standard originated from the German Institute for Standardisation (Deutsches Institut für Normung eV) and is used internationally.
ISO - An abbreviation for International Standards Organisation, which defines and publishes safety and quality standards.
15488 - This is the assigned legislation number.
2006 - This is the year the standard was published.
01 - The edition number. This is the first edition.

FAQs
What's the difference between a collet and a chuck?
Chucks are engineered to tighten around larger, uneven objects, while collets use a clamping collar around a part. They're ideal for gripping smaller components that are consistently sized.
What does a collet in an engine do? 
Mainly used in four-stroke engines, a pair of collets are designated to hold inlet and exhaust valves securely in place.

Cutting Tools

Toolholding

Chucks

Indexa

Collet chucks ER Series is Europe's most popular collet system used to maintain concentricity for drilling and milling process.

Features & Benefits
• Collapsing collet design for versatile used on a range of diameters
• Designed to maintain high concentricity for accuracy
• Long reach options available to give access into deep recesses

Typical Applications
• Drilling
• Milling

Notes
• BT = BT-MAS 403 


Brand	Indexa
Chuck Type	Collet Chuck
Collet Capacity	ER16
Diameter	28mm
EAN	5036140083332
ECLASS Code	21020490
MFR Part No.	BT40-ER16-100
Overall Length	100mm
Shank	BT40
Standards Met	BT = BT-MAS 403
UNSPSC Code	27112807
Weight	1240g

Indexa

BT40-ER16-100 ER STYLE COLLET CHUCK

IN STOCK (10)

Product Information

Overview

Product Specification

Brand

Chuck Type

Collet Capacity

Diameter

EAN

ECLASS Code

MFR Part No.

Overall Length

Shank

Standards Met

UNSPSC Code

Weight

Key Information

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