[Clean & Pack]Self-Tapping Inserts - Slotted

App. Example

How to Use Hand Tools for Self-Tapping Inserts

• 1. Drill a pilot hole in the workpiece within the appropriate limit of tap pilot hole diameters shown in the above table.
  When the tapped material has high hardness, drill a pilot hole of slightly larger diameter within the range.
• 2. With the slot facing down, fully attach the self-tapping insert to the tip of the hand tool (Fig. 1).
  And then, put the insert vertically into the pilot hole by turning the tool handle. (Fig. 2)
  * If the pilot hole diameter is too small, it may cause a lag in pitch or looseness, and can damage tools.
  * At the start of tapping (1 to 2 pitches), check to see if the tools are aligned straight with the pilot hole.
  If the insert is slanted, stop turning the tool and re-align. After the insert is put in the hole almost halfway (1/3 to 1/2 depth), realignment becomes disabled.
  Do not reverse the rotation during the insertion as that will cause damages.
• 3. When the insert has arrived at a predetermined depth, tighten the hex part of the tool with a wrench, and then turn the handle counterclockwise
  to separate the tool from the workpiece. (Fig. 3)
  * Further turning a tool when already in contact with the workpiece can damage the self-tapping part of the insert and result in a loose fit.
• 4. Before the first use, please select a proper pilot hole dia. through trials.

(Fig. 1)

(Fig. 2)

(Fig. 3)

How to Use a Bolt and a Nut