Irwin Hanson 91143 Silver Deming Drill Bit HSS Shank - 43/64 1/2

The Irwin Hanson 91143 is a 43/64" Silver & Deming drill bit designed for professional drilling applications in metal, wood, and plastic. Constructed from M-7 high speed steel, this bit delivers exceptional resistance to abrasion and heat during demanding operations.

Key Features:

• M-7 high speed steel construction for superior durability and heat resistance
• Three-flatted 1/2" reduced shank prevents slippage and provides secure grip in keyless chucks
• Standard 6" overall length with 1/2" shank fits all standard 1/2" drills
• 118-degree split point for accurate starting and reduced walking
• Black oxide finish increases tool life and provides corrosion resistance

Silver & Deming bits feature a reduced shank design that allows larger diameter drilling using standard 1/2" drill chucks, making them essential for industrial, construction, and fabrication work. The three-flat shank design ensures maximum grip and torque transfer, particularly important when drilling larger holes in tough materials.