Greenlee Multi-Hole Step Bit Set 3-Piece with Double Flute Design and Split-Point Tips

Greenlee Multi-Hole Step Bit Set 3-Piece with Double Flute Design and Split-Point Tips

Professional drilling solution for versatile material cutting applications

The Greenlee Multi-Hole Step Bit Set delivers professional-grade performance with its improved double flute design and patented split-step technology. This 3-piece set includes GSB01, GSB04, and GSB09 bits with maximum drill diameters up to 1-1/8" and capability for 10 gauge sheet metal thickness. The durable split-point tips and three-flat shank design ensure compatibility with all 1/2" drill chucks while providing fast, accurate material penetration across mild steel, aluminum, brass, copper, wood, fiberglass, plastics and laminates.

Professional Features & Benefits

• Double Flute Design: Superior chip evacuation increases cutting speeds and extends tool life for maximum productivity and cost efficiency.
• Patented Split-Step Technology: Optimizes chip load for fast, smooth cutting while delivering more holes per battery charge in cordless applications.
• Progressive Cutting Edges: Balanced aggression maximizes torque efficiency and minimizes motor stalling for consistent performance.
• Split-Point Tips: Durable design provides fast, accurate material penetration with reduced walking and improved hole placement.
• Three-Flat Shank: Universal compatibility with all 1/2" drill chucks ensures secure grip and prevents slipping during operation.
• Laser Markings: Quick, easy product and size identification reduces setup time and improves workflow efficiency.
• Versatile Material Compatibility: Cuts mild steel, aluminum, brass, copper, wood, fiberglass, plastics and laminates for diverse applications.

Technical Specifications

• Country Of Origin: United States
• Included: GSB01 (1/2" bit) , GSB04 (7/8" bit), GSB09 (1-1/8" bit) and carrying case
• Maximum Drill Diameter: GSB01 - 1/2" (12.7 mm), GSB04 - 7/8" (22.2 mm), GSB09 - 1-1/8" (28.6 mm)
• Maximum Sheet Metal Thickness: 10 gauge (3.5 mm)
• Minimum Drill Diameter: GSB01 - 1/8" (3.2 mm), GSB04 - 3/16" (4.8 mm), GSB09 - 3/16" (4.8 mm)
• Product Type: Multi-hole Step Bit Set

Installation & Operation

1. Mount the step bit securely in a compatible 1/2" drill chuck using the three-flat shank design for optimal grip.
2. Select the appropriate bit size based on the required hole diameter range and material thickness specifications.
3. Mark the drilling location and position the split-point tip for accurate material penetration without walking.
4. Begin drilling at moderate speed, allowing the progressive cutting edges to engage gradually for smooth operation.
5. Maintain steady pressure and let the double flute design evacuate chips naturally for optimal cutting performance.
6. Complete the hole to the desired diameter using the laser markings for quick size identification and verification.

Professional Applications

• Electrical installations requiring precise holes in metal panels and enclosures
• HVAC ductwork fabrication and modification projects
• Plumbing installations through metal studs and structural components
• General construction and maintenance drilling in mixed materials
• Industrial fabrication requiring clean, accurate holes in sheet metal
• Automotive and equipment repair applications
• Professional contractor and maintenance operations

Why Choose Greenlee Quality?

Greenlee delivers professional-grade tools manufactured in the United States with patented split-step design technology and laser marking systems. The included carrying case ensures organized storage and transport, while the durable construction and progressive cutting edge design provide reliable performance across diverse material applications for long-term value and productivity.