Drillco 1/2 High Spiral Flute 1/2 Shank Construction Reamer (428A132)
Drillco 428A132 1/2 High Spiral Flute 1/2 Shank Construction Reamer is designed for heavy-duty reaming in structural steel fabrication, bridgework, and assembly applications. This construction reamer features a tapered point for easy entry into misaligned or off-center holes, ensuring precise and accurate hole enlargements. The high spiral flute design enhances chip removal, reduces heat buildup, and produces a clean, smooth finish. The 3-flats reduced shank provides a secure grip in the chuck, and the longer shank allows use in turret lathes and applications requiring extended reach. Built for reliability, it is ideal for demanding industrial environments.
1/2-inch high spiral flute 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 improved surface finish
3-flats reduced shank prevents slipping in the chuck
Most common angles for countersinking available: 60°, 82°, 90°
4 flutes for improved material removal rate and surface finish
Longer shank suitable for turret lathe use and extended reach
Ensures precise, clean, and smooth hole enlargements
Improves chip removal and reduces heat buildup during cutting
Provides versatility with multiple countersinking angles and flutes
Durable construction minimizes replacement frequency and downtime
Reliable performance for industrial and fabrication operations
Technical Specifications:
Shank Size: 1/2 inch
Shank Type: 3-flats reduced shank
Point Type: Tapered point
Flute Type: High spiral flutes, 4 flutes for improved removal rate
Shank Length: Longer shank for turret lathe use
Countersink Angles: 60°, 82°, 90°
Applications: Structural steel fabrication, bridgework, assembly, turret lathe operations, hole alignment
Product identification
- Brand: Drillco
- Model / MPN: 428A132





