Description
Drillco 427E164 1 Spiral Flute 1/2 Shank Construction Reamer is designed for heavy-duty reaming in structural steel fabrication, bridgework, and assembly applications. This construction (car) reamer features a tapered point for smooth entry into misaligned or undersized holes, ensuring precise and efficient hole enlargement. The spiral flute design enhances chip removal, reduces heat buildup, and improves cutting performance in demanding industrial environments. Made from premium-grade cobalt high-speed steel (HSS), it can handle harder materials and provides approximately 30% faster cutting than standard HSS. The self-centering 135° split-point minimizes walking and lowers thrust for stable, controlled cutting. A bronze surface treatment offers high lubricity to extend tool life. The shorter screw-machine length increases rigidity to minimize breakage, while the 3-flats reduced shank ensures a secure, slip-free grip in the chuck.
Features:
- 1-inch spiral flute construction reamer with 1/2-inch shank
- Tapered point for smooth entry into misaligned or undersized holes
- Spiral flutes for efficient chip removal and consistent cutting
- Premium-grade cobalt HSS for drilling harder materials and faster cutting
- Self-centering 135° split-point minimizes walking and reduces thrust
- Bronze surface treatment provides high lubricity
- Short screw-machine length for added rigidity and reduced breakage
- 3-flats reduced shank prevents slipping in the chuck
Benefits:
- Ensures accurate, clean, and smooth hole enlargements
- Handles harder materials efficiently and faster than standard HSS
- Prevents tool wander for improved drilling stability
- Durable construction minimizes replacement frequency and downtime
- Ideal for structural steel fabrication, bridgework, and assembly operations
Technical Specifications:
- Model: 427E164
- Size: 1 inch
- Shank Size: 1/2 inch
- Shank Type: 3-flats reduced shank
- Point Type: Tapered point, 135° split-point
- Flute Type: Spiral flutes
- Material: Premium-grade cobalt HSS
- Surface Treatment: Bronze
- Length Type: Short screw-machine length
- Manufacture: Made in USA
- Applications: Structural steel fabrication, bridgework, assembly, hole alignment, hard material reaming
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