CTD S&D Magnum Drill Bit, 9/16", Shank: 1/2" 3-Flatted

CTD S&D Magnum Drill Bit, 9/16", Shank: 1/2" 3-Flatted

The 093440 CTD S&D Magnum Drill Bit is a heavy-duty reduced-shank twist drill built for tough drilling jobs where standard bits start to complain. Made from Hi-Molybdenum tool steel (HSS) with one-piece solid construction, it features a 135° split point for faster starts and better control, plus a gold surface treatment to improve lubricity. With a 9/16" cutting diameter and a 1/2" 3-flatted shank, it’s designed to run in common chucks while still giving you the larger hole size—because sometimes your drill chuck has limits, but your project doesn’t.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 093440
• Brand: CTD
• Series: Magnum
• Product Type: Reduced shank drill bit (S&D) / twist drill
• Diameter: 9/16 in
• Shank Size / Style: 1/2 in, 3-flatted
• Point: 135° split point
• Material: High speed steel (Hi-Molybdenum tool steel)
• Construction: One-piece solid
• Surface Treatment: Gold-treated body and clearance for increased lubricity
• Recommended Materials: Work-hardening stainless steel and other hard metals
• Series Note: Sizes greater than 1 in use a 118° split point (per manufacturer spec)

Ideal For

• Drilling stainless steels and other hard metals that punish ordinary bits
• Jobs needing a 9/16" hole with a drill chuck that prefers a 1/2" shank
• Heavy-duty shop or field drilling where durability matters
• Reducing walk and improving starts with a 135° split point
• Anyone who wants the bit to cut the metal—without turning the job into a full workout