326020 Masonry Drill Bit, 5/8 In. X 12 In., Straight Shank

The Irwin 326020 is a 5/8-inch diameter masonry drill bit designed for drilling into concrete, brick, and stone. This 12-inch long bit is built from high-speed steel with a chrome vanadium shaft, making it durable enough for both professional contractors and serious DIY users tackling tough masonry projects. Whether you're setting anchors, drilling post holes, or creating openings in concrete, this bit delivers the strength and precision needed to work efficiently through hard materials.

This masonry bit fits all hammer drills and rotary hammers equipped with a 3-jaw or Jacobs chuck, eliminating the need for adapters. The 2-flute design with optimized flute geometry removes dust and debris quickly from the hole, speeding up drilling and extending bit life. The shaft is through-hardened to 50–53 HrC, shot-peened, and double-tempered for consistent performance under the heat and stress of heavy drilling. Copper braze material on the tip provides excellent heat resistance, and all cutting edges meet ANSI specifications for reliable performance on every job.

Features and Benefits

• Chrome Vanadium Shaft: Through-hardened to 50–53 HrC and double-tempered for durability and heat resistance during demanding drilling tasks.
• 2-Flute Design: Optimized flute geometry removes dust and debris quickly, speeding up the drilling process and extending bit life.
• Universal Chuck Compatibility: Fits all hammer drills and rotary hammers with 3-jaw or Jacobs chuck; no adapters needed.
• Copper Braze Tip: High heat-resistant material maintains performance under load and friction during extended use.
• ANSI Specification Compliance: Tips manufactured to ANSI standards for consistent quality and reliability.

Specifications

• Brand: Irwin
• Model: 326020
• Diameter: 5/8 inch
• Overall Length: 12 inches
• Material: High-speed steel with chrome vanadium shaft
• Flute Design: 2-flute
• Shank Type: Straight shank
• Hardness: Through-hardened to 50–53 HrC