1/4″ Aircraft Extension Drill Bit – 12″ OAL – HSS – 135° Split Point – NAS Type B – DBAC12-1/4

The DBAC12-1/4 aircraft extension drill bit delivers enhanced reach and precision for drilling in tight or recessed spaces. Featuring a 1/4″ diameter and 12″ overall length, it maintains a standard 2-3/4″ flute length and incorporates a 135° split point for easy starts and reduced feed pressure. Constructed from high-speed steel and finished in black oxide, this bit complies with NAS 907 Type B for aircraft extension applications, making it ideal for industrial, aerospace, and fabrication settings.