ROVI offers a variety of Craftsman Industries Inc. products designed for machining with ER collets, including:

ER Collet Holders
Long 6.65" - 16" OAL | Short "Stubby" 3.5" - 6.2" OAL

ROVI Also carries ER Collets & Sealed ER Collets (ER11, ER16, ER20, ER25, ER32 and ER40)

 

 

Straight Shank Collet Chucks
Long ER Collet Holders 6.65" - 16" OAL

Scroll Down To Order Online

Replacement Lock Nuts &
Open-end hex wrenches
are also available
(Part Numbers In Table Below)

Click here for Short "Stubby" 3.5" - 6.2" OAL

For use on CNC Mills

ER lock nuts interchangeable with ER "mini" lock nuts of other manufacturers.

TABLE OF DIMENSIONS
Chuck
Part
Number
D
Shank Diameter
L
Overall
Length
L1
Lock Nut
Length
D1
Lock Nut
Diameter
Hex.
Wrench
Size
Max. Dia.
Thru
Shank
ER
Collet
Series
Chuck
Capacity
Wrench
Part
Number
Lock Nut
Part
Number
PCH-ER11-0500 ** 0.500" 6.65" 0.47" 0.62" 9/16" 1/4" ER11 .019 - .276 W-0562 LN-ER11
PCH-ER11-0500S-8L 0.500" 8" 0.47" 0.62" 9/16" solid shank* ER11 .019 - .276 W-0562 LN-ER11
PCH-ER11-0500S-9L 0.500" 9" 0.47" 0.62" 9/16" solid shank* ER11 .019 - .276 W-0562 LN-ER11
PCH-ER11-0500S-10L 0.500" 10" 0.47" 0.62" 9/16" solid shank* ER11 .019 - .276 W-0562 LN-ER11
PCH-ER11-0625 ** 0.625" 6.65" 0.47" 0.62" 9/16" 1/4" ER11 .019 - .276 W-0562 LN-ER11
PCH-ER16-0625 ** 0.625" 7.10" 0.68" 0.86" 13/16" 3/8" ER16 .019 - .394 W-0812 LN-ER16
PCH-ER16-0750 ** 0.750" 7.10" 0.68" 0.86" 13/16" 3/8" ER16 .019 - .394 W-0812 LN-ER16
PCH-ER16-0750S-10L 0.750" 10" 0.68" 0.86" 13/16" solid shank* ER16 .019 - .394 W-0812 LN-ER16
PCH-ER16-0750S-12L 0.750" 12" 0.68" 0.86" 13/16" solid shank* ER16 .019 - .394 W-0812 LN-ER16
PCH-ER16-0750S-14L 0.750" 14" 0.68" 0.86" 13/16" solid shank* ER16 .019 - .394 W-0812 LN-ER16
PCH-ER16-1000 ** 1.000" 7.20" 0.68" 0.86" 13/16" 3/8" ER16 .019 - .394 W-0812 LN-ER16
PCH-ER20-1000 ** 1.000" 7.20" 0.78" 1.10" 1" 9/16" ER20 .039 - .512 W-1000 LN-ER20
PCH-ER25-1250 ** 1.250" 7.25" 0.84" 1.36" 1-1/4" 3/4" ER25 .039 - .630 W-1250 LN-ER25
PCH-ER20-1000S-10L 1.000" 10" 0.78" 1.10" 1" solid shank* ER20 .039 - .512 W-1000 LN-ER20
PCH-ER20-1000S-12L 1.000" 12.50" 0.78" 1.10" 1" solid shank* ER20 .039 - .512 W-1000 LN-ER20
PCH-ER20-1000S-14L 1.000" 14" 0.78" 1.10" 1" solid shank* ER20 .039-.512 W-1000 LN-ER20
PCH-ER20-1000S-16L 1.000" 16" 0.78" 1.10" 1" solid shank* ER20 .039-.512 W-1000 LN-ER20
Click linked part numbers for images **
Solid Shank items have no thru-hole or backup screw *

All back-up screws have 1/8" hex. socket
Extra-long chucks (8"+) are limited supply. Please check availability before ordering
DO NOT OVER TIGHTEN LOCK NUT, ALWAYS USE BACKUP SCREW

 

Straight Shank Collet Chucks
Short "Stubby" ER Collet Holders 3.5" - 6.2" OAL

Scroll Down To Order Online
Replacement Lock Nuts &
Open-end hex wrenches
are also available
(Part Numbers In Table Below)

Click Here For Long 6.65" - 16" OAL


For use on CNC Mills

  • Manufactured in USA from high grade, heat-treated alloy steel
  • Black Oxide finish for corrosion prevention
  • Comes equipped with inside back-up screw and Lock Nut
  • Tighten lock nut with a standard open-end wrench
    (no special wrench needed, unlike other brands)
  • Smaller diameter lock nut than most brands make
    these ideal for machining hard-to-reach surfaces.
ER lock nuts interchangeable with ER "mini" lock nuts of other manufacturers.

TABLE OF DIMENSIONS
Chuck
Part
Number
D
Shank
Diameter
L
Overall
Length
L1
Lock Nut
Length
D1
Lock Nut
Diameter
Hex.
Wrench
Size
Max. Dia.
Thru
Shank
ER
Collet
Series
Chuck
Capacity
Wrench
Part
Number
Lock Nut
Part
Number
SPH-ER11-0500 0.500 3.50 0.47 0.62 9/16" 1/4" ER11 .019 - .276 W-0562 LN-ER11
SPH-ER11-0625 0.625 3.50 0.47 0.62 9/16" 1/4" ER11 .019 - .276 W-0562 LN-ER11
SPH-ER16-0625 0.625 3.65 0.68 0.86 13/16" 3/8" ER16 .019 - .394 W-0812 LN-ER16
SPH-ER16-0750 0.750 3.65 0.68 0.86 13/16" 3/8" ER16 .019 - .394 W-0812 LN-ER16
SPH-ER20-0625 0.625 3.75 0.78 1.10 1" 3/8" ER20 .039 - .512 W-1000 LN-ER20
SPH-ER20-0750 0.750 3.75 0.78 1.10 1" 3/8" ER20 .039 - .512 W-1000 LN-ER20
SPH-ER20-1000 1.000 3.75 0.78 1.10 1" 9/16" ER20 .039 - .512 W-1000 LN-ER20
SPH-ER25-1000 1.000 6.10 0.84 1.36 1-1/4" 3/4" ER25 .039 - .630 W-1250 LN-ER25
SPH-ER25-1250 1.250 6.10 0.84 1.36 1-1/4" 3/4" ER25 .039 - .630 W-1250 LN-ER25
SPH-ER32-1000 1.000 6.20 0.95 1.61 1-1/2" 9/16" ER32 .039 - .787 W-1500 LN-ER32
SPH-ER32-1250 1.250 6.20 0.95 1.61 1-1/2" 3/4" ER32 .039 - .787 W-1500 LN-ER32
SPH-ER32-1500 1.500 6.20 0.95 1.61 1-1/2" 3/4" ER32 .039 - .787 W-1500 LN-ER32
Click part numbers for images

All back-up screws have 1/8" hex. socket
DO NOT OVER TIGHTEN LOCK NUT, ALWAYS USE BACKUP SCREW

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