Description
Drillco 428N141 .652 High Spiral Flute 1/2 Shank Nitro Construction Reamer is designed for heavy-duty reaming in structural steel fabrication, bridgework, and industrial assembly applications. The tapered point allows smooth entry into misaligned or off-center holes, ensuring precise and accurate hole enlargements. Its high spiral flutes and Nitro surface treatment improve chip removal, reduce heat buildup, and produce a clean, smooth surface finish. The 3-flats reduced shank provides a secure, slip-free grip in the chuck, making it ideal for demanding fabrication tasks.
Features:
- .652-inch high spiral flute Nitro construction reamer with 1/2-inch shank
- Tapered point for smooth entry into misaligned or undersized holes
- High spiral flutes for efficient chip removal and smooth surface finish
- 3-flats reduced shank for secure, slip-free chuck grip
- Most common angles for countersinking available: 60°, 82°, 90°
- 6 flutes for very fast shearing cuts
- Higher flute count reduces chip size and chatter
Benefits:
- Ensures precise, clean, and accurate hole enlargements
- Improves chip removal and reduces heat buildup during cutting
- Minimizes chatter for smoother cutting performance
- Durable construction for long-lasting industrial use
- Reliable performance in structural steel and bridgework applications
Technical Specifications:
- Model: 428N141
- Size: .652 inch
- Shank Size: 1/2 inch
- Shank Type: 3-flats reduced shank
- Point Type: Tapered point
- Flute Type: High spiral flutes, 6 flutes for fast shearing
- Countersink Angles: 60°, 82°, 90°
- Surface Treatment: Nitro hard, protective coating
- Applications: Structural steel fabrication, bridgework, industrial assembly






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