Description
Drillco 427N232-132 1-1/2 Spiral Flute 1/2 Shank Nitro Construction Reamer is designed for heavy-duty reaming in structural steel fabrication and other demanding metalworking applications. Its tapered point allows smooth entry into misaligned or undersized holes, ensuring precise alignment and accurate sizing. The spiral flute design promotes efficient chip removal and consistent cutting performance, while the 3-flats reduced shank provides a secure, slip-resistant grip. Featuring a Nitro surface treatment with black and gold coating, this reamer achieves increased hardness without brittleness and delivers maximum lubricity. Made from premium grade cobalt high-speed steel (HSS), it can drill harder materials approximately 30% faster than standard HSS reamers.
Features:
- Tapered point for accurate entry into misaligned or undersized holes
- Spiral flute design for smooth cutting and effective chip evacuation
- Nitro surface treatment with black and gold coating for hardness and lubricity
- Premium grade cobalt HSS for drilling harder materials faster
- 3-flats reduced shank for a secure, no-slip grip
- Self-centering 135° split point reduces thrust and walking
- Longer shank suitable for turret lathes
- 4 flutes for improved material removal and surface finish
- Supports common countersink angles: 60°, 82°, 90°
Benefits:
- Ensures precise and consistent reaming results
- Improves alignment of structural steel components
- Handles harder materials efficiently
- Prevents slippage during heavy-duty operations
- Resists wear and breakage for long-term durability
- Produces clean, smooth hole finishes
Technical Specifications:
- Model: 427N232-132
- Size: 1-1/2 in.
- Type: Nitro Construction Reamer
- Flute Style: Spiral (4 flutes)
- Shank: 1/2 in. 3-Flats Reduced Shank
- Material: Premium Grade Cobalt HSS
- Surface Treatment: Nitro, black and gold for hardness and lubricity
- Point Type: Tapered with 135° Split Point
- Applications: Structural steel fabrication, misaligned hole correction, harder materials
- Supported Countersink Angles: 60°, 82°, 90°






Reviews
There are no reviews yet.