https://www.machandtools.com/products/cnc-lathe-er40-er-collet-chuck-tool-holder-with-coolant-thru-straight-shank-1-1-4 from www.machandtools.com
$87.43 In stock
CNC Lathe ER40 ER Collet Chuck Tool Holder with Coolant Thru Straight Shank 1-1/4" ; Collet Nut Diameter (mm), 63mm ; Collet Nut Threads, M50X1.5 ; D - Shank ...
People also ask
What does er stand for in collets?
The standard series are: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The "ER" name came from an existing "E" collet (which were a letter series of names) which Rego-Fix modified and appended "R" for "Rego-Fix". The series number is the opening diameter of the tapered receptacle, in millimetres.
What is the largest ER40 collet?
ER Collet
Length
Clamping Range
ER-20
31.5 mm (1.24")
1—13 mm (0.039—0.512")
ER-25
34 mm (1.34")
1—16 mm (0.039—0.630")
ER-32
40 mm (1.57"
1—21 mm (0.039—0.827")
ER-40
46 mm (1.81")
3—26 mm (0.118—1.024")
How to determine er collet size?
Standards of ER Collets These collets are usually found in a standard series as: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The numbers represent the opening diameter of the tapered receptacle in millimeters.
How do you install an ER collet?

Mounting instructions for ER collets and nut:

1
Put the collet into the nut, turn the collet slightly. ...
2
Fix the nut and the collet on the spindle rotate the nut until the collet is in pressing, wipe the straight shank of cutter and insert it into the pilot hole.
... Collet Chuck Tool Holder with Coolant Thru Straight Shank 1-1/4". CNC Lathe ER40 ER Collet Chuck Tool Holder with Coolant Thru Straight Shank 1-1/4". Regular ...
https://www.machandtools.com/products/cnc-lathe-er40-er-collet-chuck-tool-holder-with-coolant-thru-straight-shank-1-1-4 from www.machandtools.com
$210.00 In stock
ER-32 to 1"Collet Chuck Tool Holder With Straight Shank ... CNC Lathe ER40 ER Collet Chuck Tool Holder with Coolant Thru Straight Shank 1-1/4" ... Email: info@ ...