#11 (.1910) Extension Drill Bit HSS 12 Long

The No. 11 HSS extension drill bit is designed to provide extended reach for drilling in confined-access areas. It has a 0.1910 in drill diameter (approximately 4.85 mm) and an overall length of 12 in (approximately 305 mm).

Manufactured in high-speed steel with a steam-oxide surface treatment, this Type B threaded hex-shank drill is built to NAS 965 Type B construction. The threaded shank uses a 1/4-28 UNF Class 2A thread for use with a suitable adaptor.

• Manufacturer part number: 11HSX12
• Roctexo part number: RX1-12-04429
• Drill size: No. 11, 0.1910 in (approximately 4.85 mm)
• Overall length: 12 in (approximately 305 mm)
• Material: High-speed steel (HSS)
• Shank: Type B threaded hex shank, 1/4-28 UNF Class 2A
• Construction: NAS 965 Type B
• Finish: Steam oxide

Suitable for general- to medium-duty drilling of low-tensile-strength materials where additional reach is required.