Upgrade your lathe with our ER25 Collet Chuck, engineered for precision workholding, the ER Lathe Collet Chuck securely grips various tool shanks and workpieces on a lathe. Compatible with ER25 collets (1-16mm capacity), this chuck ensures superior concentricity (<0.015mm TIR) and repeatability for fine-tolerance machining.
Model
ER25 - 95mm
ER25 - 100mm
Diameter
95mm
100mm
Collet Type
ER25
ER25
Mount Type
Back Mount
Back Mount
Bore Size
18mm
18mm
Register Diameter
55mm
72mm
Bolt Pattern (PCD)
66mm (3×M6)
84mm (3×M8)
Compatibility
C2, C3, SC3 Lathes
C4, SC4 Lathes
Included
C-Spanner
C-Spanner
How to Install a Lathe Collet Chuck – Step-by-Step Guide
These collets are used to securely hold your end mills into your spindle during milling.
Made from heat treated carbon steel with high accuracy degree.
ER25 Collets are 26mm diameter and 34mm length.
This hardened tool steel chuck block accommodates ER32 collets with hex or square shanks, featuring a through-hole for machining extended workpieces.
Its robust construction delivers reliable performance on CNC machines, enabling quick setups and precise cross-hole drilling at 60, 90, or 120-degree angles.
Stands upright for versatile positioning. Collet sold separately.
Why Choose ER Collets? ER collets are slotted (alternately) from both ends and therefore compress onto the cutter along the whole length of the collet when tightened. This not only provides a better grip on the cutter shank but also allows some variation (typically 1mm) in shank sizes that may be used in a single collet. The smaller size collets are best used to hold cutters no more than 0.5mm below the nominal size. Inspecting the inside of our ER collet nuts reveals an internal flange that has been machined eccentric to the main axis of the nut. This is not a machining error but is designed that way to lock onto the groove of the collet and aid its release from the chuck body. For this feature to work properly, the collet must be mounted in the nut first before fitting the assembly into the chuck body. To mount the collet in the nut, insert it on an angle, turn slightly and push it into the nut until it clicks into place on the eccentric flange. The cutter may now be fitted and the assembly tightened hard into the chuck body. To remove the cutter, slacken and undo the nut until resistance is felt. Then, using a collet wrench, further undo the nut until the collet is released from the chuck body. Removal of the collet from the nut is the reverse of the mounting procedure.
Item Code
Nominal Size
Clamping Range
020-021-32020
2.0mm
2.0 - 1.5mm
020-021-32025
2.5mm
2.5 - 2.0mm
020-021-32030
3.0mm
3.0 - 2.5mm
020-021-32035
3.5mm
3.5-3.0mm
020-021-32040
4.0mm
4.0 - 3.5mm
020-021-32050
5.0mm
5.0 - 4.5mm
020-021-32060
6.0mm
6.0 - 5.5mm
020-021-32070
7.0mm
7.0 - 6.0mm
020-021-32080
8.0mm
8.0-7.0mm
020-021-32090
9.0mm
9.0-8.0mm
020-021-32100
10.0mm
10.0-9.0mm
020-021-32110
11.0mm
11.0-10.0mm
020-021-32120
12.0mm
12.0-11.0mm
020-021-32130
13.0mm
13.0-12.0mm
020-021-32140
14.0mm
14.0-13.0mm
020-021-32150
15.0mm
15.0-14.0mm
020-021-32160
16.0mm
16.0-15.0mm
020-021-32170
17.0mm
17.0-16.0mm
020-021-32180
18.0mm
18.0-17.0m
020-021-32190
19.0mm
19.0-18.0mm
020-021-32200
20.0mm
20.0-19.0mm
Upgrade your lathe with our ER32 Collet Chuck, engineered for precision workholding, the ER Lathe Collet Chuck securely grips various tool shanks and workpieces on a lathe. Compatible with ER32 collets (1.5-20mm capacity), this chuck ensures superior concentricity (<0.015mm TIR) and repeatability for fine-tolerance machining.
Model
ER32-95mm
ER32-100mm
ER32-125mm
ER32-125mm D1-4
Diameter
95mm
100mm
125mm
125mm
Collet Type
ER32
ER32
ER32
ER32
Mount Type
Back Mount
Back Mount
Back Mount
D1-4
Bore Size
24mm
24mm
24mm
32mm
Register Diameter
55mm
72mm
95mm
63.513mm
Bolt Pattern (PCD)
66mm (3×M6)
84mm (3×M8)
107mm (3×M8)
D1-4 Standard
Compatibility
C2, C3, SC3 or similar
C4, SC4 or similar
C6, SC6 or similar
D1-4 Lathes Spindle
Included
C-Spanner
C-Spanner
C-Spanner
C-SpannerD1-4 Bolts
How to Install a Lathe Collet Chuck – Step-by-Step Guide
These ER32 high precision collets are compatible with HSD collet and ISO30 taper spindles and similar. Rated to 24,000rpm.
Model
d H7
D
D1
D2
L
L1
L2
L3
capacity
ER32
3~20
32
33
29.2
40.0
7.16
5.5
3.6
1.0
Why Choose ER Collets? ER collets are slotted (alternately) from both ends and therefore compress onto the cutter along the whole length of the collet when tightened. This not only provides a better grip on the cutter shank but also allows some variation (typically 1mm) in shank sizes that may be used in a single collet. The smaller size collets are best used to hold cutters no more than 0.5mm below the nominal size. Inspecting the inside of our ER collet nuts reveals an internal flange that has been machined eccentric to the main axis of the nut. This is not a machining error but is designed that way to lock onto the groove of the collet and aid its release from the chuck body. For this feature to work properly, the collet must be mounted in the nut first before fitting the assembly into the chuck body. To mount the collet in the nut, insert it on an angle, turn slightly and push it into the nut until it clicks into place on the eccentric flange. The cutter may now be fitted and the assembly tightened hard into the chuck body. To remove the cutter, slacken and undo the nut until resistance is felt. Then, using a collet wrench, further undo the nut until the collet is released from the chuck body. Removal of the collet from the nut is the reverse of the mounting procedure.
Item Code
Nominal Size
Clamping Range
020-021-40030
3.0mm
3.0 - 2.5mm
020-021-40035
3.5mm
3.5-3.0mm
020-021-40040
4.0mm
4.0 - 3.5mm
020-021-40050
5.0mm
5.0 - 4.5mm
020-021-40060
6.0mm
6.0 - 5.5mm
020-021-40070
7.0mm
7.0 - 6.0mm
020-021-40080
8.0mm
8.0-7.0mm
020-021-40090
9.0mm
9.0-8.0mm
020-021-40100
10.0mm
10.0-9.0mm
020-021-40110
11.0mm
11.0-10.0mm
020-021-40120
12.0mm
12.0-11.0mm
020-021-40130
13.0mm
13.0-12.0mm
020-021-40140
14.0mm
14.0-13.0mm
020-021-40150
15.0mm
15.0-14.0mm
020-021-40160
16.0mm
16.0-15.0mm
020-021-40170
17.0mm
17.0-16.0mm
020-021-40180
18.0mm
18.0-17.0m
020-021-40190
19.0mm
19.0-18.0mm
020-021-40200
20.0mm
20.0-19.0mm
020-021-40210
21.0mm
21.0-20.0mm
020-021-40220
22..0mm
22.0-21.0mm
020-021-40230
23.0mm
23.0-22.0mm
020-021-40240
24.0mm
24.0-23.0mm
020-021-40250
25.0mm
25.0-24.0mm
020-021-40260
26.0mm
26.0-25.0mm
Upgrade your lathe with our ER40 Collet Chuck, engineered for precision workholding, the ER Lathe Collet Chuck securely grips various tool shanks and workpieces on a lathe. Compatible with ER40 collets (2.5-26mm capacity), this chuck ensures superior concentricity (<0.015mm TIR) and repeatability for fine-tolerance machining.
Model
ER40-100mm
ER40-125mm
ER40-125mmD1-4
Product Code
020-030-40100
020-030-40125
020-030-40126
Diameter
100mm
125mm
125mm
Collet Type
ER40
ER40
ER40
Mount Type
Back Mount
Back Mount
D1-4
Bore Size
32mm
32mm
40mm
Register Diameter
72mm
95mm
63.513mm (2.5005")
PCD
84mm (3×M8)
107mm (3×M8)
D1-4 Standard
Compatibility
C4, SC4 or similar
C6, SC6, C7, SC70 or similar
D1-4 Spindle Lathes
Included
C-Spanner
C-Spanner
C-Spanner, D1-4 Bolts
How to Install a Lathe Collet Chuck – Step-by-Step Guide
Featuring a robust red aluminum alloy construction, this 50mm diameter guide delivers precision and durability for your workshop. The set includes three interchangeable bushing collets in 6mm, 8mm, and 10mm sizes to accommodate various applications. Threaded bushes ensure secure fastening, while the integrated V-groove stop accommodates 45-degree angle work with ease. Ideal for routing, drilling, and guided cutting tasks.
Economy precision cutting tweezers
Anti-magnetic stainless steel handle
Very precise cutting of hairsprings, extrended life time
High cutting capacity
Hard metal blades
Early collection: selected tool ranges from a small number of Australian suppliers. Prices and stock are observations from the linked page and may apply to a selected option. Confirm the exact size, condition and delivery with the seller.