Description
Drillco 428A142 21/32 High Spiral Flute 1/2 Shank Construction Reamer is designed for heavy-duty reaming in structural steel fabrication, bridge construction, and automotive assembly. Its high spiral flute design ensures efficient chip removal and precise hole enlargement. The tapered point allows smooth entry into small or slightly off-center holes. Made from premium-grade high-speed steel HSS, this reamer delivers durable performance in demanding construction applications. The 3-flats reduced shank ensures a secure fit in drill chucks. Proudly made in the USA.
Features:
- 21/32″ high spiral flute construction reamer with 1/2″ shank
- Tapered point for easy entry into off-center holes
- High spiral flute design for efficient chip removal
- Premium-grade HSS for long-lasting performance
- 4 flutes for improved material removal rate and surface finish
- 3-flats reduced shank for secure chuck grip
- Made in the USA
Benefits:
- Ensures precise hole enlargement and alignment in structural applications
- Reduces walking and improves drilling stability
- Optimized flute design increases cutting efficiency and surface quality
Technical Specifications:
- Model: 428A142
- Type: High Spiral Flute Construction Reamer
- Size: 21/32″
- Shank Size: 1/2″
- Flute Type: High Spiral, 4 flutes
- Point Type: Tapered
- Material: Premium High-Speed Steel HSS
- Shank Design: 3-flats reduced shank
- Applications: Structural steel fabrication bridge construction automotive assembly
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