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Products

Custom Chucks

We custom design workholding solutions to fully address the parts features and workholding application. Some companies create “custom” chucks by altering a standard item to “make it work”; Skill-Craft takes a systematic approach to design a chuck custom to you – custom to your application and custom to your part.

Whether you are replacing an existing chuck or having troubles with a current application, Skill-Craft engineers can provide you with the appropriate solution to your needs.

Collets, Top Jaws & Locators

Well known in the machine tool industry, workholding fixtures are one of the most perishable items. Workholding collets, chuck jaws, and other perishable tooling components is what Skill-Craft is all about. SC manufactures high quality, close tolerance replacement tooling for all brand name workholding fixtures.

All major brand producers of workholding equipment supply replacement components for their tooling; however, it is not always convenient for them to do so on a timely, cost conscious basis. SC is dedicated to meeting the needs of those manufacturers who require quality tooling that is competitively priced and delivered in a timely fashion.

OD / ID Collet Chucks

  • Gripping force centralized over entire O.D. of part ensuring no part distortion
  • Greatest form of concentricity and repeatability outside of diaphragm chucks
  • Higher degree of simplicity than standard (3) jaw chucks
  • Simple part change over
  • No centrifugal force lost, able to run at > 6,000 rpm’s

Balance and Precision Chucks

Specializing in balancing for over 35 years, you can trust Skill-Crafts’ years of quality products. As a leader in quality, precision, accuracy, concentricity, durability, and reliability you can count on our chucks made for the most precise applications and tightest balancing requirements. Most precision chucks models repeat less than .0001 TIR, air operation or actuation for the most precise parts. Air release and Spring Clamping ensures perfect repeatability

Let Skill-Craft quote your most difficult precise workholding needs – any part needing balancing, Skill-Craft has a solution.

Diaphragm Chucks


Diaphragm Chucks from Skill-Craft Company Inc are ideal for high precision turning, grinding, milling, boring, hard turning, inspection. By using one piece construction allows for clamping on O.D., I.D., or pitch-line, thin-walled parts: No metal-on-metal moving parts, causing no wear for long-life. These chucks ensure flexibility to engineers or tool designers and will mount in existing machine envelope (jaw height, locator, and jaw inserts identical). 3, 4 or 6 jaw standard designs, or custom designs available and uniform, variable clamping forces provide a rigid design without part distortion.

Power Chucks

Competitive Advantages & Strengths

  • Long term ownership (33 years) 
  • (3) graduate engineers: Multiple employees with each having 25+ years dedication to Skill-Craft
  • Knowledgeable with both Skill-Craft and non Skill-Craft workholding products: Continuous improvement achieved by transferring this knowledge to own custom designs
  • Repair both Skill-Craft and non Skill-Craft chucks to achieve like new accuracy

Flat-Lok Expanding Mandrels

Flat-Lok expanding mandrels offer high stability by using precisely ground flats on collet, draw screw and body. If slipping occurs, collet rides up on flats causing increased gripping pressure. Maintains accuracy of .0005 or better and orientation of flats on assembly does not affect concentricity.

Built in safety stop provides long lasting collet functionality and self-releasing collets pre-loaded assuring easy part removal.

Between Centers Arbors

Between Centers Arbors offer stability by including precisely ground flats on collet, expander and shaft. If slipping occurs, collet rides up on flats causing increased gripping pressure and centers are precision ground for increased accuracy.

Accuracy Our between centers arbors maintain accuracy of .0005 or better and orientation of flats on assembly does not affect concentricity.

Built in safety stop provides long lasting collet functionality. Collets are pre-loaded assuring easy part removal. Collets ground specifically to part size, assembly specs can be altered in order to fit custom products. Pull-back allows for proper seating against part-stop.