1-3/8" Reduced Shank HSS Drill Bit 1/2" Shank 3-Flat Shank

The 1-3/8" Reduced Shank HSS Drill Bit is designed for drilling large diameter holes while remaining compatible with standard 1/2" drill chucks. Made from high-speed steel (HSS), this drill bit provides excellent durability, heat resistance, and consistent cutting performance for demanding drilling applications.

The reduced 1/2" shank allows oversized drill bits to be used with common drills and drill presses without the need for larger chucks. Its 3-flat shank design helps prevent slipping inside the chuck, ensuring improved grip and better torque transfer during heavy-duty drilling.

Ideal for metalworking, fabrication, maintenance, and general shop use, this drill bit provides reliable performance when drilling larger holes in metal, plastic, and other materials.

Features & Benefits

• 1-3/8" HSS drill bit
• Reduced 1/2" shank fits standard drill chucks
• 3-flat shank design helps prevent chuck slippage
• High-speed steel construction for durability and heat resistance
• Suitable for metal, plastic, and general drilling applications

This reduced shank drill bit offers efficient large-diameter drilling while maintaining compatibility with standard 1/2 inch drill chucks.

In-stock items usually ship within 2 business days but can take up to 7 business days. Shipping time starts once your order heads out the door.