Drillco 15/32 High Spiral Flute 15/32 Shank Nitro Construction Reamer (428N130)
Drillco 428N130 15/32 High Spiral Flute 15/32 Shank Nitro Construction Reamer is designed for heavy-duty reaming in structural steel fabrication, bridge construction, and other demanding assembly applications. Its tapered point and high spiral flute design allow smooth entry into misaligned or undersized holes while promoting efficient chip removal and precise cutting performance. The 3-flats reduced shank provides a secure grip in the drill chuck. Nitro surface treatment adds a hard, protective layer to the reamer, increasing hardness without brittleness. The body is black and gold surface treated for maximum lubricity. This reamer features six flutes for very fast shearing cuts, reduced chip size, and minimized chatter. Countersinking angles are commonly available at 60°, 82°, and 90°. Made in the USA for consistent quality and durability.
15/32" high spiral flute Nitro construction reamer with 15/32" reduced shank
Tapered point for smooth entry into misaligned holes
High spiral flute design for efficient chip removal
Nitro surface treatment for increased hardness and lubricity
Black and gold body for maximum lubricity
Six flutes for very fast shearing cuts and reduced chip size
Minimizes chatter during reaming
3-flats reduced shank ensures secure grip
Most common countersink angles available: 60°, 82°, 90°
Made in the USA for quality assurance
Precise alignment of structural steel components
Efficient chip removal with smooth, accurate finishes
Faster and cleaner cuts due to higher flute count
Reduced chatter for improved surface finish
Durable Nitro-treated design extends tool life
Technical Specifications:
Shank Size: 15/32"
Shank Type: 3-Flats Reduced Shank
Flute Type: High Spiral (6 flutes)
Point Type: Tapered
Surface Treatment: Nitro, black and gold coating
Countersink Angles: 60°, 82°, 90°
Application: Heavy-duty reaming in construction, bridgework, and structural steel fabrication
Product identification
- Brand: Drillco
- Model / MPN: 428N130





