High Speed Steel NC Spotting Drill Bit For Dead On Centering On CNC Machines With 90 Degree Point Slow Spiral And Straight Shank One Half Inch Diameter Four And One Sixty Fourth Inch Overall Length YG-1

High Speed NC Spotting Drill for CNC Centering - Single
✔️ 1/2 in dia, 4 1/64 in long, 8% cobalt HSS; 90° point

This NC spotting drill bit is designed to deliver precise dead-on centering on NC/CNC milling centers. Its 90-degree point creates a clean center and a chamfer in a single pass, speeding up setup and improving hole alignment in jigging and fixture applications.

✅ Material: high speed steel with 8% cobalt for edge retention
✅ Point angle: 90 degrees for precise centering and chamfering
✅ Shank: straight shank compatible with common CNC collets
✅ Diameter: 1/2 in (12.7 mm); Length: 4 1/64 in (102 mm)
✅ Application: ideal for NC/CNC machines to center and chamfer in one drill pass

💡 What is an NC spotting drill used for in CNC work?

This handy tool helps start holes accurately and align the drill with the workpiece center.

- Improves dead-center alignment in milling and drilling
- Reduces misalignment and improves hole quality in fixtures
- Works with straight shank tools in standard CNC chucks
- Helps achieve concurrent centering and chamfering in one pass