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We currently carry over 20 styles and have over 200 + pcs. in stock
Our centering blocks are made from S-7 material 57-59 Rockwell (unless specificed by our customers).

​We stock many styles of aftermarket replacement centering blocks that fit National and Okuma machines
and make many others from customers prints or samples.
​
Aftermarket replacement part that fits 1/4 National HS SDDS Finish/2nd/Punch Blk - TMW #1980
Aftermarket replacement part that fits 1/4 National HS SDDS Cone/1st/Punch Centering Blk - TMW #1347
Aftermarket replacement part that fits 89 National 2D3B 1st/Upset/Cone Centering Block - TMW #1796
Aftermarket replacement part that fits 3/16 National 1st/Upset/Cone Centering Block - TMW #278
Aftermarket replacement part that fits 3/16 National 2nd/Finish/Punch Centering Block - TMW #279
Aftermarket replacement part that fits 1/8 National 2nd/Finish/Punch Centering Block - TMW #924
Aftermarket replacement part that fits 3/16 National 1st/Upset/Cone Centering Block - TMW #353
Aftermarket replacement part that fits 1/8 National 1st/Upset/Cone Centering Block - TMW #923
Aftermarket replacement part that fits 3/16 National 2nd/Finish/Punch Centering Block - TMW #352
Aftermarket replacement part that fits 1/4 National Combination Centering Block - TMW #1535
Aftermarket replacement part that fits 1/8 National Combination Centering Block
Aftermarket replacement part that fits 56 National 1st/Upset/Cone Centering Block - TMW #1166
Aftermarket replacement part that fits 56 National 2nd/Finish/Punch Centering Block - TMW #1166
Aftermarket replacement part that fits 3/16 National Combination Centering Block
Aftermarket replacement part that fits 56 National Combination Centering Block
Aftermarket replacement part that fits 1/4 Nat'l HS SDDS 1st/Cone/Punch Centering Block - TMW #1347
Aftermarket replacement part that fits 25 National Combination Centering Block
Aftermarket replacement part that fits 34 National 1st/Upset/Cone Centering Block - TMW #1695
Aftermarket replacement part that fits 34 National 1st/Upset/Cone Centering Block
Aftermarket replacement part that fits 5/16 National 1st/Upset/Cone Centering Block - TMW #1505
Aftermarket replacement part that fits 5/16 National 2nd/Finish/Punch Centering Block - TMW #1506
Aftermarket replacement part that fits 56 National Combination Centering Block
Aftermarket replacement part that fits 61-62 National 1st/Upset/Cone Centering Block
Aftermarket replacement part that fits 89 National 2nd/Finish/Punch Centering Block - TMW #1795
Aftermarket replacement part that fits 68 National 2nd/Finish/Punch Centering Block
Aftermarket replacement part that fits 68 National 1st/Upset/Cone Centering Block
Aftermarket replacement part that fits 45 National 1st/Upset/Cone Centering Block
Aftermarket replacement part that fits 45 National 2nd/Finish/Punch Centering Block
Aftermarket replacement part that fits 56 National 2D3B 2nd/Cone/Punch Centering Block - TMW #1611
Aftermarket replacement part that fits 56 National 3rd/Finish/Punch Centering Block - TMW #2013
Aftermarket replacement part that fits 61 National 2nd/Finish Centering Block - TMW #2017
Aftermarket replacement part that fits 5/16 National Centering Block
Aftermarket replacement part that fits ORH-120 3rd Sta Centering Block - TMW #869
Aftermarket replacement part that fits ORH-80 1st/Upset/Cone Centering Block - TMW #684
Aftermarket replacement part that fits ORH-80 3rd Punch Centering Block - TMW #390
Aftermarket replacement part that fits ORH-120 1st/Upset/Cone Centering Block - TMW #871
Aftermarket replacement part that fits RH-80 1st/Upset/Cone Centering Block - TMW #1804
Aftermarket replacement part that fits ORH-120 2nd/Finish/Punch Centering Block - TMW #870
Aftermarket replacement part that fits 1/4 National Finish Centering Block - TMW #874
Aftermarket replacement part that fits ORD 80 3rd/Punch Centering Block - TMW #311
Aftermarket replacement part that fits 89 National 1st/Impact Centering Block 2D3B - TMW #1619
Aftermarket replacement part that fits RH-80 3rd Punch Centering Block - TMW #1805

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5459 11th Street
Rockford, IL 61109

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​​Copyright © 2025. Thomason Machine. All Rights Reserved.

CONTACT US

Phone:  (815) 874-8217
​Fax:  (815) 874-5044

EMAIL US

contact@
​thomasonmachine.com

  • Home
  • About TMW
    • Services & Machinery
  • Tour
  • Repair Parts
    • CNC Milling and Turning >
      • CNC Milling
      • CNC Turning
    • Header
    • Roll Thread
    • Wire EDM
  • Careers
  • Contact Us
    • Our Staff
    • Request a Quote