Drillco 7/16 High Spiral Flute 7/16 Shank Nitro Construction Reamer (428N128)
Drillco 428N128 7/16 High Spiral Flute 7/16 Shank Nitro Construction Reamer is a Nitro heavy-duty construction reamer designed with a surface treatment that adds a hard, protective layer, increasing hardness without increasing brittleness. Its black and gold finish ensures maximum lubricity, while the 3-flats reduced shank provides a secure grip in the chuck. The high spiral flute design improves chip removal and cutting efficiency, making it ideal for demanding construction applications.
High spiral flute design for efficient chip removal
3-flats reduced shank for secure chuck grip
Most common countersinking angles available: 60°, 82°, 90°
6 flutes for very fast shearing cuts
Higher flute count reduces chip size and chatter
Ensures accurate and smooth reaming in structural steel applications
Durable construction for extended heavy-duty use
Reduces chatter and improves surface finish
Secure grip minimizes slippage and breakage
Technical Specifications:
Type: High Spiral Flute Nitro Construction Reamer
Shank Size: 7/16"
Shank Style: 3-flats reduced shank
Surface Treatment: Black and gold for maximum lubricity
Applications: Fabrication of structural steel assemblies
Product identification
- Brand: Drillco
- Model / MPN: 428N128





