High Speed Steel Bright Machine Screw or Fractional Hand Taps Screw Thread Insert (STI)
Screw Thread Insert (STI) taps are dimensionally oversize and utilize a larger tap drill size so that thread they produce will accommodate a helical screw thread insert.
Features:
Made from general purpose HSS
Geometries available in both plug and bottoming
Bright finish for added lubricity
Square shank for use with standard sized tap wrenches
Made in USA
Applications:
Cutting threads in a wide variety of materials
For producing threads that fit standard screw thread inserts
Cutting threads by hand
