Description
Drillco 428N162 31/32 High Spiral Flute 1/2 Shank Nitro Construction Reamer is engineered for heavy-duty construction applications where precision and durability are critical. The reamer features a high spiral flute design for fast shearing cuts, reducing chip size and minimizing chatter. Its black and gold surface treatment enhances lubricity, while an additional protective layer increases hardness without adding brittleness. The 3-flats reduced shank ensures a secure grip and reliable performance in both handheld and machine operations.
Features:
- 31/32-inch Nitro construction reamer with high spiral flute
- 1/2-inch reduced shank with 3-flats for secure grip
- Black and gold surface treatment for maximum lubricity
- Protective surface layer increases hardness without brittleness
- 6 flutes for fast shearing cuts and reduced chip size
- Supports common countersink angles: 60°, 82°, 90°
- Durable design for heavy-duty construction use
Benefits:
- Delivers fast, efficient material removal with minimal chatter
- Ensures precise and consistent hole sizing
- Extends tool life and reduces wear
- Secure shank grip improves stability during operation
- Versatile for handheld and machine-based applications
Technical Specifications:
- Model: 428N162
- Size: 31/32 inch
- Shank: 1/2-inch reduced with 3-flats
- Flute Count: 6 high spiral flutes
- Surface Treatment: Black and gold with protective hard layer
- Supported Countersink Angles: 60°, 82°, 90°
- Applications: Heavy-duty construction and structural reaming





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