12 Pack 3 Inch Boring Head With R8 Shank And 3 Quarter Inch Carbide Boring Bars Set For Milling Precision Hole Sizing Heavy Duty Metalworking And Professional Grade Performance
✔️ 3 inch boring head with R8 shank, 12x 3/4 inch carbide bars
This 12-pack boring head set includes a 3 inch head, R8 shank, and twelve 3/4 inch carbide boring bars. Designed for milling, shaping, and drilling applications, it delivers precise hole sizing and heavy-duty metalworking performance.
✅ 3 inch boring head size
✅ Boring bar hole and cross hole dia: 3/4 inch
✅ Maximum offset: 1 inch
✅ Includes R8 shank
✅ 12 x 3/4 inch carbide boring bars
✅ Micrometer lead screw with 0.0001 inch reading
✅ Hardened and ground adjusting screw
✅ Made of grade tool steel
✅ Comes with plastic case for safe transport
💡 What is a 3 inch boring head with R8 shank used for in milling and precision hole sizing? This handy tool is designed to deliver accurate hole sizing with repeatable results.
- Handy for achieving tight tolerances in milling and boring work
- Useful with standard milling machines using R8 spindles
- Carbide bars resist wear for long-lasting performance