Drillco bridge reamer details
Drillco 7/8 Bridge Reamer Taper Shank (425A156)
Drillco 425A156 7/8 Bridge Reamer Taper Shank is designed for precise hole enlargement and alignment in demanding industrial and structural applications. Commonly used in bridge construction, shipbuilding, and steel fabrication, this reamer ensures accurate diameter sizing for high-tolerance projects. The pilot-type point allows smooth entry and alignment in small or slightly off-center holes. Made from premium-grade HSS with a 135° self-centering split-point, it reduces thrust and walking. The black oxide surface treatment improves durability, while the shorter screw machine length adds rigidity to minimize breakage. The round shank ensures secure fit in drill chucks, and the tool is proudly made in the USA.
7/8" bridge reamer with tapered shank for precise operation
Pilot-type point for smooth, accurate hole alignment
Premium-grade HSS with 135° self-centering split-point
Black oxide surface treatment for extended tool life
Short screw machine length adds rigidity to reduce breakage
Round shank for secure chuck compatibility
Provides precise diameter sizing for structural assemblies
Reduces walking and improves drilling stability
Extends tool life with durable materials and finish
Minimizes breakage with reinforced design
Technical Specifications:
Type: Bridge Reamer, Taper Shank
Point Type: Pilot, 135° self-centering split-point
Material: Premium High-Speed Steel (HSS)
Surface Treatment: Black oxide
Applications: Bridgework, shipbuilding, structural steel fabrication
Product identification
- Brand: Drillco
- Model / MPN: 425A156
