Drillco 11/16 Spiral Flute 1/2 Shank Construction Reamer (427A144)
Drillco 427A144 11/16 Spiral Flute 1/2 Shank Construction Reamer is built for heavy-duty reaming tasks in structural steel fabrication, bridgework, and other demanding assembly operations. Its tapered point design enables smooth entry into undersized or misaligned holes, ensuring accurate alignment during installation. The spiral flute construction promotes efficient chip removal and cleaner cutting performance, while the 3-flats reduced shank provides a secure, slip-resistant grip in the drill chuck. Made from premium high-speed steel (HSS) and finished with black oxide for enhanced wear resistance, this reamer delivers durability and consistent results. Its short screw machine length increases rigidity to help prevent breakage. Proudly manufactured in the USA for reliable performance in professional applications.
11/16" spiral flute construction reamer with 1/2" reduced shank
Tapered point for smooth entry into misaligned holes
Spiral flute design for effective chip removal
3-flats reduced shank ensures a secure grip
Premium HSS construction for long tool life
Black oxide finish increases wear resistance
Short screw machine length improves rigidity
Made in the USA for quality assurance
Enables precise alignment of structural steel components
Minimizes walking and thrust for controlled reaming
Performs reliably under heavy-duty working conditions
Technical Specifications:
Shank Size: 1/2"
Shank Type: 3-Flats Reduced Shank
Flute Type: Spiral
Point Type: Tapered
Material: Premium High-Speed Steel (HSS)
Surface Treatment: Black Oxide
Application: Heavy-duty reaming in construction, bridgework, and structural steel fabrication
Product identification
- Brand: Drillco
- Model / MPN: 427A144
