Home » Collets » ER Coolant Jet Collets » ER20 Coolant Jet Collets » .187-ER20CJ-3/16
MariTool's product quality is guaranteed to meet or exceed your expectations.
We ship worldwide
Same day shipping via UPS is available for in-stock items ordered Monday through Friday before 4:00pm CDT (excluding holidays and USPS orders).
Click here for details
MariTool Payment Options
ER20 COOLANT JET COLLET 3/16 $32.50
ER20 COOLANT JET COLLET 3/16
Click to enlarge


ER20 COOLANT JET COLLET 3/16
Click to enlarge
ER20 COOLANT JET COLLET 3/16
Click to enlarge
ER20 COOLANT JET COLLET 3/16
Click to enlarge
Item No. .187-ER20CJ-3/16
Price: $32.50
Shipping: In Stock - Ships Same Day *
Quantity: 

* Same Day Shipping is only available on orders placed Monday - Friday before 4 P.M. Central Time.

Product Info

View complete catalog page

  • Total runout less than .0003 on these precise ER20 collets
  • Made from Alloy spring steel and fully hardened
  • All critical collet surfaces are precision ground
  • Works with coolant thru spindle tooling or collets chucks with internal coolant supply
  • Collet seals coolant from within tool holder and routes it thru holes around perimeter, see picture
  • Works in all ER20 Collet Chucks
  • This ER20 collet has a full .015 range of collapse while maintaining full accuracy
  • This ER20 collet has a range of .1875-.1725 inches
  • MariTool Part# is .187-ER20CJ-3/16

Product Specifications
Collet Grip Range:  .1875-.1725
Size:  3/16