![]()  | Weldon Balanced Shell Mill Holders 
  | 

| Product Number | A | B | "C" Thread | E | L | S | Drive Key | Arbor Screw | 
| W5ST3B | 0.750 | 0.687 | 3/8-24 | 1.625 | 4.500 | 1.250 | # 0 | 1538 | 
| W5ST4B | 1.000 | 0.687 | 1/2-20 | 2.000 | 4.680 | 1.250 | # 1 | 1537 | 
| Arbor Nomenclature | 
LOVEJOY Tool Company, Inc. 800-843-8376
![]()  | Weldon Balanced Shell Mill Holders 
  | 

| Product Number | A | B | "C" Thread | E | L | S | Drive Key | Arbor Screw | 
| W5ST3B | 0.750 | 0.687 | 3/8-24 | 1.625 | 4.500 | 1.250 | # 0 | 1538 | 
| W5ST4B | 1.000 | 0.687 | 1/2-20 | 2.000 | 4.680 | 1.250 | # 1 | 1537 | 
| Arbor Nomenclature |