Drillco 1-1/4 High Spiral Flute 1/2 Shank Construction Reamer (428A216-132)

Description

Drillco 428A216-132 1-1/4 High Spiral Flute 1/2 Shank Construction Reamer is designed for heavy-duty reaming in structural steel fabrication, bridgework, and industrial assembly tasks. The tapered point allows smooth entry into misaligned or off-center holes, ensuring precise and accurate hole enlargements. Its high spiral flute design enhances chip removal, reduces heat buildup, and delivers a clean, smooth finish. The 3-flats reduced shank provides a secure grip in the chuck, making it suitable for demanding fabrication environments.

Features:

• 1-1/4-inch high spiral flute construction reamer with 1/2-inch shank
• Tapered point for smooth entry into misaligned or undersized holes
• High spiral flutes for efficient chip removal and smooth surface finish
• 3-flats reduced shank for secure, slip-free chuck grip
• Most common angles for countersinking available: 60°, 82°, 90°
• 6 flutes for very fast shearing cuts
• Higher flute count reduces chip size and chatter

Benefits:

• Ensures precise, clean, and accurate hole enlargements
• Improves chip removal and reduces heat buildup during cutting
• Minimizes chatter and provides smooth cutting performance
• Durable construction for long-lasting industrial use
• Reliable performance in structural steel and bridgework applications

Technical Specifications:

• Model: 428A216-132
• Size: 1-1/4 inch
• Shank Size: 1/2 inch
• Shank Type: 3-flats reduced shank
• Point Type: Tapered point
• Flute Type: High spiral flutes, 6 flutes for fast shearing
• Countersink Angles: 60°, 82°, 90°
• Applications: Structural steel fabrication, bridgework, industrial assembly