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