Precision Twist Drill 6001139 Series 209 3/4 in HSS Taper Shank Jobber Drill Bit

The Precision Twist Drill 6001139 is a Series 209 High-Speed Steel (HSS) taper shank jobber drill bit with a 3/4 in (0.750 in) diameter. Designed for professionals in metalworking, machining, and fabrication, this drill delivers reliable, accurate hole-making performance in steel, cast iron, wood, and synthetic materials.

The 209 Series features a Type N flute form with a regular helix angle (21–34°) and a conventional 118° point geometry — the most widely accepted standard for general-purpose drilling. A steam-tempered (black oxide) finish enhances lubricity, resists corrosion, and helps prevent material buildup and welding on the cutting edge when working with iron and steel.

Key Specifications:

• Series: 209 (Taper Shank Jobber Drill)
• Diameter: 3/4 in (0.750 in)
• Overall Length: 9-3/4 in
• Flute Length: 5-7/8 in
• Point Angle: 118°
• Shank Type: Morse Taper (#2 MTS)
• Cut Direction: Right Hand
• Material: High-Speed Steel (HSS)
• Finish: Steam Tempered (Black Oxide)
• Flute Form: Type N — Regular Helix (21–34°)
• Drilling Depth Capacity: Up to 4× drill diameter

The Morse taper shank provides a secure, self-centering fit in compatible taper-shank tool holders and drill press spindles, making this bit ideal for production environments and heavy-duty drilling applications. Cross-reference part numbers: 020048, A3603/4, DOR2093/4, DMTS-015.