Description
Drillco 420A132 1/2 Bridge Reamer Taper Shank is engineered for precision reaming in bridgework, ship construction, and structural steel fabrication where exact hole sizing is essential. The pilot-type point provides accurate alignment and smooth entry, even into small or off-center holes. Built for durability, this single-flute reamer is designed to minimize chatter and deliver clean, accurate finishes in demanding industrial environments.
Features:
- Pilot-type point for precise alignment and easy hole entry
- Ideal for bridgework, ship construction, and structural steel
- Accurately reams small or off-center holes
- Durable construction for long service life
- Common countersink angles: 60°, 82°, 90°, 100°
- Single-flute design reduces chatter in small-diameter holes
Benefits:
- Ensures consistent precision in critical applications
- Produces smooth, accurate hole enlargement
- Minimizes vibration for better finish quality
- Reliable for heavy-duty, industrial operations
Technical Specifications:
- Model: 420A132
- Size: 1/2″
- Type: Bridge Reamer – Taper Shank
- Point Type: Pilot-type
- Countersink Angles: 60°, 82°, 90°, 100°
- Flute Type: Single-flute
- Applications: Structural steel, bridgework, ship construction






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