Drillco bridge reamer details
Drillco 1-1/4 Bridge Reamer Taper Shank (425A216)
Drillco 425A216 1-1/4 Bridge Reamer Taper Shank is built for precision reaming in demanding structural applications such as bridgework, ship construction, and heavy structural steel fabrication. This 1-1/4" bridge reamer with taper shank delivers accurate diameter control and clean finishes in both new fabrication and field repair work. The reamer uses a pilot-type point for easy entry and alignment in small or off-center holes, and a self-centering 135° split-point to reduce walking and cutting thrust. Manufactured from premium-grade HSS for superior wear resistance and long tool life, it features a black oxide surface treatment that helps resist corrosion and extends service life. The shorter screw-machine length improves rigidity to minimize breakage under heavy feed conditions, while the round shank ensures compatibility with standard tooling and chucks.
1-1/4-inch bridge reamer with taper shank for structural applications
Pilot-type point for accurate alignment and easy hole entry
Self-centering 135° split-point reduces walking and lowers thrust
Premium-grade HSS construction for extended wear resistance
Black oxide finish for improved corrosion resistance and life
Short screw-machine length for added rigidity and reduced breakage
Round shank for compatibility with standard tooling and chucks
Delivers precise, repeatable hole diameters in bridgework and shipbuilding
Reduces rework by minimizing walking and improving starting accuracy
Higher rigidity lowers the risk of tool failure during heavy-duty use
Longer service life reduces tooling replacement frequency and downtime
Versatile for both shop and field reaming tasks on structural steel
Technical Specifications:
Size: 1-1/4 inch (1.25")
Shank Type: Taper shank (round shank compatibility)
Point Type: Pilot-type point with 135° split-point (self-centering)
Material: Premium grade HSS (high-speed steel)
Surface Treatment: Black oxide finish
Length Type: Short screw-machine length for added rigidity
Manufacture: Made in USA
Applications: Bridgework, ship construction, structural steel fabrication, field reaming
Product identification
- Brand: Drillco
- Model / MPN: 425A216
