Description
Drillco 428N144 11/16 High Spiral Flute 1/2 Shank Nitro Construction Reamer is designed for heavy-duty reaming in structural steel fabrication and other demanding 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. The black and gold surface treatment adds hardness and maximum lubricity, improving reamer life without increasing brittleness. Constructed from premium grade cobalt HSS, this reamer delivers superior performance in tougher materials.
Features:
- Tapered point for accurate entry into misaligned or undersized holes
- High spiral flute design for smooth cutting and effective chip evacuation
- Premium grade cobalt HSS for drilling harder materials
- 3-flats reduced shank for a secure, no-slip grip
- Black and gold surface treatment for hardness and maximum lubricity
- Supports common countersink angles: 60°, 82°, 90°
- 6 flutes for very fast shearing cuts
- Higher flute count reduces chip size and minimizes chatter
Benefits:
- Ensures precise and consistent reaming results
- Improves alignment of structural steel components
- Handles heavy-duty applications efficiently
- Reduces vibration and chatter for smoother finishes
- Maintains durability in tougher materials
- Produces clean, accurate holes quickly
Technical Specifications:
- Model: 428N144
- Size: 11/16 in.
- Type: Nitro Construction Reamer
- Flute Style: High Spiral (6 flutes)
- Shank: 1/2 in. 3-Flats Reduced Shank
- Material: Premium Grade Cobalt HSS
- Surface Treatment: Black and Gold
- Point Type: Tapered
- Applications: Structural steel fabrication, misaligned hole correction, heavy-duty reaming
- Supported Countersink Angles: 60°, 82°, 90°
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