Attention Customers
In observation of the Memorial Day Holiday MariTool will be closed Monday, May 28th.
All orders placed during the holiday will be shipped on Tuesday, May 29th.
Home » Cutting Tools » Thread Mills » UNF and UNC Thread Forms » 1300-.370-.850-20
MariTool's product quality is guaranteed to meet or exceed your expectations or your money back*.
We ship worldwide
Same day shipping is available for in-stock items ordered Monday through Friday before 4:00pm CDT (excluding holidays).
MariTool Payment Options
Thread Mill .350 Diameter 1/2-20 UNF $101.51
Thread Mill .350 Diameter 1/2-20 UNF
Click to enlarge


Thread Mill .350 Diameter 1/2-20 UNF
Click to enlarge
Thread Mill .350 Diameter 1/2-20 UNF
Click to enlarge
Thread Mill .350 Diameter 1/2-20 UNF
Click to enlarge
Item No. 1300-.370-.850-20
Price: $101.51
Shipping: In Stock - Ships Same Day *
Quantity: 

* Same Day Shipping is only available on orders placed Monday - Friday before 4 P.M. Central Time.

Product Info - Thread Mill .350 Diameter 1/2-20 UNF

View complete catalog page »

  • Helical flutes for reduced cutting forces
  • These thread mills are able to produce internal or external threads
  • These thread mills are able to produce left or right hand threads
  • Produces 100% thread height and is full form
  • Excellent for hard to tap materials and gummy alloys
  • Thread angle is 60 degrees

Product Specifications
Coating:  TIALN
Cutting diameter:  .370
Flute length:  .850
Material:  10% micrograin carbide
Number of flutes:  4
Shank Size:  .375
Size:  1/2-20 UNF
Total Length:  3.5