Already have a account? Login

#300 Sure-Grip® Round Expanding Collet

Please make a selection for the options below to add to cart:
Finish * :
Sizing Method * :
Order Hole Size * :

Your Price:

$139.00 - $201.00 USD

Type Sure-Grip®
Brand Hardinge
Style #300
#300 5C Sure-Grip® Expanding Collet Assembly 18690000000300
#300 5C Expanding Collet Arbor 18710000000300
#300 5C Draw Plug 18730000000300
#300 5C Work Locating Stop 18750000000300
Socket Head Cap Screw 10-32 x 1/2" 0100308
#300 Expanding Collet Locating Pin 78690000000300
#300 A2-8 Expanding Collet Arbor 18670000000300
#300 A2-8 Expanding Collet Assembly 18790000000300
25C Draw Bar Adapter 78810000000300
A2-8 #300 Blank Adapter 78830000000300

The Hardinge Sure-Grip® Expanding Collet System is ideal for internal gripping of larger diameter bores. The Sure-Grip system has a larger gripping range and considerably more gripping force due to its true parallel closing. The #300 Series Expanding Collet will handle a range from 1" to 1.499" (25.4 to 38.07 mm). Collets are available in 1/64" increments within the above stated ranges. Each collet will hold a workpiece with a bore of -.001" (.0254 mm) under the size of the collet to +.015" (.38 mm) over the size of the collet.

Advantages of the Sure-Grip Expanding Collet System...

  • Instant centering of the arbor—no adjustment needed after mounting
  • Quick changeover
  • Wide gripping range for each collet
  • True parallel gripping even when gripping on half the collet body
  • High gripping force
  • Light gripping on small parts with bores down to 1⁄8" (3.175mm)
  • Built-in safety stop to prevent the collet from overexpanding
  • Exact part length control
  • Consistency in collet capacity for different spindle styles (interchangeable collets)
  • Delivery in 3 to 5 days
California Residents

WARNING: product can expose you to chemicals, such as lead, including one or more listed chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm.

For more information, go to