CTD XGT-AG XL Drill Bit, 7/16"X9"

CTD XGT-AG XL Drill Bit, 7/16"X9"

The 40870 CTD XGT-AG XL Drill Bit is a heavy-duty extra-length drill bit built for deep hole drilling in tough materials like stainless steel and hard metals. Its XGT-AG gyroidal torsion flute and wide land construction are designed to improve chip evacuation and stability, helping it drill 12+ diameters deep without needing to back out to clear chips—and it can run at up to twice the feed rate of standard drills in the right setup. Finished with a 135° split point, it starts accurately and reduces walking, even when the material is feeling stubborn.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 40870
• Brand / Series: CTD XGT-AG
• Type: XGT-AG
• Product Type: Extra Length (XL) drill bit
• Measurement Type: Fractional
• Diameter: 7/16"
• Overall Length: 9"
• Flute Length: 6"
• Point: 135° split point
• Material: High speed steel (HSS)
• Shank Type: Straight
• Applicable Materials: Stainless steel, hard metal
• Performance Level: Heavy duty
• Deep-Hole Capability (Design Feature): Designed to drill 12+ diameters deep without chip-clearance backing (application dependent)

Ideal For

• Deep hole drilling where standard-length bits won’t reach
• Stainless jobs where the material wants to work-harden if you look at it wrong
• Heavy-duty drilling in hard metals where chip control and stability matter
• Production or shop work where higher feed rates can save time without sacrificing performance