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Drill
Drill
NB Fasterners offers Drill. The company Suggested drill sizes listed in the table for Aluminium are within the minor diameter limits for HELI-FORM tapped holes. Alternate drill sizes are suggested for magnesium, steel and palstics to provide for maximum tap wear life. In the case of magnesium the larger size is recommended to allow for material close-in. The company also offers Extracting Tools, Gauge, Thread Insert, etc.
