Description
Drillco 428A201 1.027 High Spiral Flute 1/2 Shank 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 high spiral flute design promotes efficient chip removal and consistent cutting performance, while the 3-flats reduced shank provides a secure, slip-resistant grip. Constructed from premium grade high-speed steel (HSS), this reamer delivers reliable performance and long-lasting durability.
Features:
- Tapered point for accurate entry into misaligned or undersized holes
- High spiral flute design for smooth cutting and effective chip evacuation
- Premium grade HSS for long-lasting durability
- 3-flats reduced shank for a secure, no-slip grip
- 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 heavy-duty applications efficiently
- Prevents slippage during operation
- Resists wear and breakage for long-term durability
- Produces clean, smooth hole finishes
Technical Specifications:
- Model: 428A201
- Size: 1.027 in.
- Type: Construction Reamer
- Flute Style: High Spiral (4 flutes)
- Shank: 1/2 in. 3-Flats Reduced Shank
- Material: Premium Grade HSS
- Point Type: Tapered
- Applications: Structural steel fabrication, misaligned hole correction, heavy-duty reaming
- Supported Countersink Angles: 60°, 82°, 90°





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