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Pull Stud - Retention Knob Section

Retention Knobs
CDTooling retention knobs are manufactured from hot-rolled 8620H fine grain steel. 
They are shot penned to relieve stress, and hard turned or superior fit and finish. 
Our knobs are laser marked with the date of purchase to help determine life span. 
For tractability purposes, each knob is lasered with a part number, serial number, and lot number. 
All of our knobs are made in the USA from USA manufactured materials. 
We stock over 400 different styles of retention knobs including adapters for NMTB toolholders. 
Retention knobs come packaged in individual containers with identification prints on each container. 
Retention knobs should be inspected yearly for cracks and wear, and replaced every three years. 
(Based on a 40 hour week under normal conditions.)
Sub-Categories
  • BT30 Pull Stud, Retention Knob Section BT30 Pull Stud, Retention Knob Section
    BT30 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • BT40 Pull Stud, Retention Knob Section BT40 Pull Stud, Retention Knob Section
    BT40 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • BT45 Pull Stud, Retention Knob Section BT45 Pull Stud, Retention Knob Section
    BT45 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • BT 50 Pull Stud, Retention Knob Section BT 50 Pull Stud, Retention Knob Section
    BT50 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • CAT30 Pull Stud, Retention Knob Section CAT30 Pull Stud, Retention Knob Section
    CAT30 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • CAT40 Pull Stud, Retention Knob Section CAT40 Pull Stud, Retention Knob Section
    CAT40 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • CAT45 Pull Stud, Retention Knob Section CAT45 Pull Stud, Retention Knob Section
    CAT45 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • CAT 50 Pull Stud, Retention Knob Section CAT 50 Pull Stud, Retention Knob Section
    CAT50 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • CAT60 Pull Stud, Retention Knob Section CAT60 Pull Stud, Retention Knob Section
    CAT60 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • DIN/ISO 30 Pull Stud, Retention Knob Section DIN/ISO 30 Pull Stud, Retention Knob Section
    DIN/ISO 30 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • DIN/ISO 40 Pull Stud, Retention Knob Section DIN/ISO 40 Pull Stud, Retention Knob Section
    DIN/ISO 40 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
  • DIN/ISO 50 Pull Stud, Retention Knob Section DIN/ISO 50 Pull Stud, Retention Knob Section
    DIN/ISO 50 Pull Stud, Retention Knob Section High Torque retention knobs are longer than a traditional retention knob, but share the same head dimensions. The additional length also increases durability of the retention knob; a standard knob has less shank elasticity and will fatigue faster. The extra length of the knob is added to the shank of the knob below the flange. This relief, along with a precision pilot and controlled threads, allows for the stress to be distributed into a deeper cross-section of the toolholder where it has more resistance.
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