ER collet

The ER collet is a type of clamping system designed to hold tools or workpieces with utmost precision. Characterized by their unique external profile and slits, these collets provide a wide clamping range, making them versatile for various applications. The “ER” stands for “Elastic Regular”, indicative of their elastic deformation capability, which ensures a tight grip.

Introduction

Product brief

Product Description

ER collets are cylindrical in shape and consist of a threaded outer surface that allows them to be screwed into a corresponding collet chuck or tool holder. They have multiple slits or slots along their length, which enable them to compress when tightened, effectively clamping onto the tool shank.Clamping Mechanism: To secure a tool in an ER collet, it is inserted into the collet, and then the collet is tightened using a collet chuck or collet nut. This causes the slits on the collet to compress around the tool shank, holding it firmly in place.

Product parameters

Size	Range	ER-8	ER-11	ER-16	ER-20	ER-25	ER-32	ER-40
Size	Range	●-available △-not available
1mm	1-0.5	●	●	●	△	△	△	△
2mm	2-1	●	●	●	●	●	△	△
3mm	3-2	●	●	●	●	●	●	△
4mm	4-3	●	●	●	●	●	●	●
5mm	5-4	●	●	●	●	●	●	●
6mm	6-5	△	●	●	●	●	●	●
7mm	7-6	△	●	●	●	●	●	●
8mm	8-7	△	△	●	●	●	●	●
9mm	9-8	△	△	●	●	●	●	●
10mm	10-9	△	△	●	●	●	●	●
11mm	11-10	△	△	△	●	●	●	●
12mm	12-11	△	△	△	●	●	●	●
13mm	12-13	△	△	△	●	●	●	●
14mm	14-13	△	△	△	△	●	●	●
15mm	15-14	△	△	△	△	●	●	●
16mm	16-15	△	△	△	△	●	●	●
17mm	17-16	△	△	△	△	△	●	●
18mm	18-17	△	△	△	△	△	●	●
19mm	19-18	△	△	△	△	△	●	●
20mm	20-19	△	△	△	△	△	●	●
21mm	21-20	△	△	△	△	△	△	●
22mm	22-21	△	△	△	△	△	△	●
23mm	23-22	△	△	△	△	△	△	●
24mm	24-23	△	△	△	△	△	△	●
25mm	25-24	△	△	△	△	△	△	●
26mm	26-25	△	△	△	△	△	△	●