Skill-Craft Company Inc.
Serving the Workholding Industry Since 1952

Custom Products

Custom Design
Custom Design

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.

Click here for examples of Custom Chucks
Collets, Top Jaws & Locators
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.

Skill Craft was founded on solely producing workholding replacement parts ...

OD/ID Collet Chucks
OD/ID Collet Chucks
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
TIR
  • Guaranteed within your balance or machining specs or better
  • Repeatability of less than .0002"
  • Allows for chuck to be balanced out on machine
  • Integrated Air Cylinders
Click here for examples
Balance & Precision Chucks
Balance & Precision Chucks
  • Leader in quality, precision, accuracy, concentricity, durability, and reliability
  • Specializing in balancing for over 35 years, you can trust Skill-Crafts' years of quality products
  • 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

Balance Chuck Applications include:

  • Drive Shafts
  • Pinion Gears
  • Ring Gears
  • ...
Diaphragm Chucks
Diaphragm Chucks
  • Ideal for high precision turning, grinding, milling, boring, hard turning, inspection
  • 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
  • Ensures flexibility to engineers or tool designers
  • Will mount in existing machine envelope (jaw height, locator, and jaw inserts identical)
  • 3, 4 or 6 jaw standard designs, or custom designs available
  • Uniform, variable clamping forces provide a rigid design without part distortion
Click here for examples of Diaphragm
Between Centers Arbors
Between Centers Arbors
Between Centers Arbors
Stability
  • Precisely ground flats on collet, expander and shaft
  • If slipping occurs, collet rides up on flats causing increased gripping pressure
  • Ground centers for increased accuracy
Accuracy
  • Maintains accuracy of .0005 or better
  • Orientation of flats on assembly does not affect concentricity
Long Lasting
  • Built in safety stop provides long lasting collet functionality
Self-Releasing
  • Collets pre-loaded assuring easy part removal
Adaptability
  • Collets ground specifically to part size
  • Assembly specs can be altered in order to fit custom
Flat-Lok Expanding Mandrels
Flat-Lok Expanding Mandrels
Flat-Lok Expanding Mandrels
Stability
  • Precisely ground flats on collet, draw screw and body
  • If slipping occurs, collet rides up on flats causing increased gripping pressure
Accuracy
  • Maintains accuracy of .0005 or better
  • Orientation of flats on assembly does not affect concentricity
Long Lasting
  • Built in safety stop provides long lasting collet functionality
Self-Releasing
  • Collets pre-loaded assuring easy part removal
Adaptability
  • Collets ground specifically to part size
  • Assembly specs can be altered in order to fit custom products
  • Standard and ...
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