Drillco 1-5/16 High Spiral Flute 3/4 Shank Construction Reamer (428A220)
Drillco 428A220 1-5/16 High Spiral Flute 3/4 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.
1-5/16" high spiral flute construction reamer with 3/4" shank
Tapered point for easy entry into off-center holes
High spiral flute design with 6 flutes for fast shearing cuts
Higher flute count reduces chip size and chatter
Most common countersinking angles available: 60°, 82°, 90°
3-flats reduced shank for secure chuck grip
Ensures precise hole enlargement and alignment in structural applications
Efficient chip removal and reduced chatter improve cutting quality
High flute count allows faster material removal and better surface finish
Technical Specifications:
Type: High Spiral Flute Construction Reamer
Shank Size: 3/4"
Flute Type: High Spiral, 6 flutes
Point Type: Tapered
Material: Premium High-Speed Steel HSS
Shank Design: 3-flats reduced shank
Applications: Structural steel fabrication bridge construction automotive assembly
Product identification
- Brand: Drillco
- Model / MPN: 428A220
