Drillco 9/16 Spiral Flute 1/2 Shank Construction Reamer (427A136)
Drillco 427A136 9/16 Spiral Flute 1/2 Shank Construction Reamer is designed for heavy-duty reaming tasks commonly encountered in structural steel fabrication, bridge construction, and other demanding assembly applications. The tapered point allows for smooth entry into misaligned or undersized holes, enabling efficient alignment of components during installation. Featuring a spiral flute design, this reamer ensures effective chip removal and clean cutting performance. The 3-flats reduced shank provides a secure, slip-resistant grip in the drill chuck. Constructed from premium high-speed steel (HSS) and treated with a black oxide finish for increased wear resistance, this tool delivers long-lasting durability. Its short screw machine length increases rigidity, reducing the risk of breakage. Proudly made in the USA for consistent quality and performance.
9/16" spiral flute construction reamer with 1/2" reduced shank
Tapered point for easy entry into misaligned holes
Spiral flute design for efficient chip removal
3-flats reduced shank for a secure grip
Premium HSS construction for extended tool life
Black oxide finish enhances wear resistance
Short screw machine length improves rigidity
Made in the USA for quality assurance
Facilitates precise alignment of structural steel components
Reduces walking and thrust for controlled, accurate reaming
Performs reliably in high-demand, heavy-duty environments
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: 427A136
