Irwin 91134 911 Series Silver & Deming Drill Bit, Black Oxide M-7 HSS, Pack of 3

Irwin 911 Series Silver & Deming Drill Bit, Black Oxide M-7 HSS, Pack of 3

The Irwin 911 Series Silver & Deming Drill Bit is engineered for reliable performance across wood, metal, and plastic drilling applications on jobsites and in the workshop. This family is available in five sizes — models 91134, 91136, 91144, 91148, and 91156 — each machined from M-7 high-speed steel and finished with a black oxide coating for enhanced abrasion and corrosion resistance. Every bit in the lineup features a standard 118° chisel-point tip for clean starts and reduced walking, plus a 1/2 in. reduced shank that fits all 1/2 in. drills for broad compatibility. Each size is sold as a pack of 3, giving professional contractors and serious DIY users a dependable option for demanding drilling tasks.

Key Features

• Model Range: Available in five sizes within the 911 Series — 91134, 91136, 91144, 91148, and 91156 — to match a range of drilling needs.
• Durable Construction: Machined from M-7 high-speed steel for high resistance to abrasion during tough drilling applications.
• Black Oxide Finish: Provides added abrasion and corrosion resistance for extended bit life.
• 118° Chisel-Point Tip: Standard point geometry for clean starts and reduced walking in wood, metal, and plastic.
• Reduced Shank: 1/2 in. reduced shank fits all 1/2 in. drills for broad tool compatibility.
• Three-Flatted Shank: Improves chuck grip and reduces slippage, ideal for use in keyless chucks.
• Bit Type: Standard twist-style Silver & Deming bit suited for portable and bench drills.
• Pack Quantity: Each size is sold as a pack of 3 bits within the 911 Series lineup.

Technical Specifications

• Warranty: NLW
• Claims Needed: No
• Country of Origin: China
• Battery Included: No
• Power Source: Non-Energy Using

Typical Applications

• Drilling in Wood, Metal, and Plastic
• General Construction and Maintenance Work
• Fabrication and Metalworking Projects
• Professional and DIY Workshop Use
• Metalworking and Fabrication Shops
• Jobsite and Workshop Drilling Tasks

Why Irwin?

Irwin builds the 911 Series Silver & Deming bits from M-7 high-speed steel with a black oxide coating, giving each size in the lineup the abrasion and corrosion resistance needed for repeated use in wood, metal, and plastic. The three-flatted shank design and standard 118° point reflect construction details engineered for a secure chuck grip and consistent, clean starts, making these bits a dependable choice for professional and DIY drilling tasks alike. Supplied in packs of 3 across five sizes — 91134, 91136, 91144, 91148, and 91156 — the 911 Series is built to keep pace with repeated use across wood, metal, and plastic materials in demanding work environments.