Product Description

  • Huge inventory of Round, Hex, Square, and Emergency styles always in stock, ready for same-day shipping.
  • Smooth and serrated versions for round-bore models (all others smooth only).
  • Industry-leading 0.062″ gripping range covers a wide range of part diameters.
  • Parallel-grip ensures full-length part contact for maximum grip force, rigidity, and accuracy.
  • Can be counter-bored for increased part capacity up to 2.62″
  • Quick-ship specials available for custom shapes.
Ground Diameter Range Smooth Part Number Serrated Part Number
3/16″ 0.157″–0.219″ 44101 N/A
7/32″ 0.188″–0.250″ 44102 N/A
1/4″ 0.219″–0.281″ 44103 N/A
9/32″ 0.250″–0.312″ 44104 N/A
5/16″ 0.282″–0.344″ 44105 N/A
11/32″ 0.313″–0.375″ 44106 44155
3/8″ 0.344″–0.406″ 44107 44156
13/32″ 0.375″–0.437″ 44108 44157
7/16″ 0.407″–0.469″ 44109 44158
15/32″ 0.438″–0.500″ 44110 44159
1/2″ 0.469″–0.531″ 44111 44160
17/32″ 0.500″–0.562″ 44112 44161
9/16″ 0.532″–0.594″ 44113 44162
19/32″ 0.563″–0.625″ 44114 44163
5/8″ 0.594″–0.656″ 44115 44164
21/32″ 0.625″–0.687″ 44116 44165
11/16″ 0.657″–0.719″ 44117 44166
23/32″ 0.688″–0.750″ 44118 44167
3/4″ 0.719″–0.781″ 44119 44168
25/32″ 0.750″–0.812″ 44120 44169
13/16″ 0.782″–0.844″ 44121 44170
27/32″ 0.813″–0.875″ 44122 44171
7/8″ 0.844″–0.906″ 44123 44172
29/32″ 0.875″–0.937″ 44124 44173
15/16″ 0.907″–0.969″ 44125 44174
31/32″ 0.938″–1.000″ 44126 44175
1″ 0.969″–1.031″ 44127 44176
1 1/32″ 1.000″–1.062″ 44128 Call
1 1/16″ 1.032″–1.094″ 44129 44177
1 3/32″ 1.063″–1.125″ 44130 Call
1 1/1″8″ 1.094″–1.156″ 44131 44178
1 5/32″ 1.125″–1.187″ 44132 Call
1 3/16″ 1.157″–1.219″ 44133 44179
1 7/32″ 1.188″–1.250″ 44134 Call
1 1/4″ 1.219″–1.281″ 44135 44180
1 9/32″ 1.250″–1.312″ 44136 Call
1 5/16″ 1.282″–1.344″ 44137 44181
1 11/32″ 1.313″–1.375″ 44138 Call
1 3/8″ 1.344″–1.406″ 44139 44182
1 13/32″ 1.375″–1.437″ 44140 Call
1 7/16″ 1.407″–1.469″ 44141 44183
1 15/32″ 1.438″–1.500″ 44142 Call
1 1/2″ 1.469″–1.531″ 44143 44184
1 17/32″ 1.500″–1.562″ 44144 Call
1 9/16″ 1.532″–1.594″ 44145 44185
1 19/32″ 1.563″–1.625″ 44146 Call
1 5/8″ 1.594″–1.656″ 44147 44186
Nominal Size Range Part Number
1/4″ 0.219″–0.281″ 44375
3/8″ 0.344″–0.406″ 44377
1/2″ 0.469″–0.531″ 44379
5/8″ 0.594″–0.656″ 44381
3/4″ 0.719″–0.781″ 44383
7/8″ 0.844″–0.906″ 44385
1″ 0.969″–1.031″ 44387
11/8″ 1.094″–1.156″ 44389
11/4″ 1.219″–1.281″ 44391
13/8″ 1.344″–1.406″ 44393
Nominal Size Range Part Number
1/4″ 0.219″–0.281″ 44670
3/8″ 0.344″–0.406″ 44672
1/2″ 0.469″–0.531″ 44674
5/8″ 0.594″–0.656″ 44676
3/4″ 0.719″–0.781″ 44678
7/8″ 0.844″–0.906″ 44680
1″ 0.969″–1.031″ 44682
11/8″ 1.094″–1.156″ 44684
  • Semi-hard Quick-Grip™ emergency collets are designed to be machined in-place by the user to accommodate special sizes, shapes, steps, etc.
  • Available in assorted pilot hole sizes to minimize machining time.
  • Collets can be counter-bored beyond standard capacity, eliminating the need for a three-jaw chuck on many jobs. The chart below provides some basic counter-bore guidelines, but many other diameter/depth combinations are possible. Please contact us for additional information.
  • Boring fixture holds collet segments firmly in-place and puts collet under slight compression to ensure accuracy and roundness during machining. Order fixture separately.
Fits Chuck Model Pilot Hole Size Part Number
QG-42 5mm (0.20″) 44187
15mm (0.59″) 44188
30mm (1.18″) 44189

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