Greenlee 3/8-16NC High Speed Steel Drill/Tap Bit with Quick Change Hex Shank

Greenlee 3/8-16NC High Speed Steel Drill/Tap Bit with Quick Change Hex Shank

Professional Three-in-One Drilling, Tapping & Deburring Solution

The Greenlee 3/8-16NC Drill/Tap Bit delivers professional-grade performance for drilling, tapping, and deburring operations in a single tool. Engineered with high-speed steel construction and a 1/4 inch quick change hex shank, this bit handles materials up to 10-gauge thickness including mild steel, copper, brass, and aluminum with reliable precision and durability.

Professional Features & Benefits

• High Speed Steel Construction: Superior durability and extended tool life compared to carbon steel alternatives for demanding professional applications.
• Three-in-One Operation: Complete hole drilling, tapping, and deburring/countersinking in one operation saves significant labor time and increases productivity.
• Back Tapered Design: Prevents thread damage from over-drilling while providing integrated deburring and countersinking capability beyond the back taper.
• Split Point with Web Thinning: Ensures precise hole starting and reduces drilling thrust for cleaner, more accurate results in various materials.
• Quick Change Hex Shank: 1/4 inch hex shank provides strong connection to drill chuck and enables rapid bit changes for improved workflow efficiency.
• 10-Gauge Capacity: Designed to tap up to 10-gauge metal thickness across multiple material types for versatile professional applications.
• 16 TPI Threading: NC (National Coarse) thread specification delivers reliable threading performance for standard fastening applications.

Technical Specifications

• Material Thickness: Up to 10 GA
• Material Type: Mild Steel, Copper, Brass, Aluminum
• Point Type: Split Point With Web Thinning
• Product Material: High Speed Steel
• Product Size: 3/8 IN
• Shank: 1/4 IN Quick Change Hex
• Thread Per Inch: 16 TPI
• Thread Type: NC

Installation & Operation

1. Mount the bit securely in a compatible power drill chuck using the 1/4 inch quick change hex shank connection.
2. Select appropriate drill speed based on material type and thickness, following manufacturer recommendations for optimal performance.
3. Position the split point precisely at the desired hole location and begin drilling with steady, controlled pressure.
4. Continue operation through the complete drilling, tapping, and deburring sequence without removing the bit from the workpiece.
5. Withdraw the bit carefully once the threading operation is complete, ensuring clean thread formation and proper deburring.
6. Inspect the completed hole and threads for quality, and clean the bit as needed for continued use.

Professional Applications

• Electrical panel and enclosure fabrication requiring threaded mounting holes
• HVAC ductwork and equipment installation with secure fastening points
• Metal fabrication shops for production threading operations
• Maintenance and repair facilities requiring efficient hole preparation
• Construction projects involving structural steel connections
• Industrial equipment assembly and modification work

Why Choose Greenlee Quality?

Greenlee delivers professional-grade tools engineered for reliability and performance in demanding applications. The high-speed steel construction and precision manufacturing ensure consistent results and extended tool life, while the innovative three-in-one design maximizes productivity and reduces operational complexity for professional tradespeople.