Link Single 5/16" Co 3Fl 0.343 Pilot X 0.507 Cbore 3/8" Shank X 5" Oal Counterbore, Sharp Cutter Built for Long Tool Life, Pro Grade Annular Cutter for Fast, Clean Big Holes

Link 5/16" Co 3Fl 0.343 Pilot X 0.507 Cbore 3/8" Shank X 5"
✔️ Single counterbore, 5/16", 3/8", 3 flute, Fast Clean Holes

This Link 5/16" Co 3Fl 0.343 Pilot X 0.507 Cbore 3/8" Shank X 5" Oal is an annular cutter for fast, clean, large holes in steel with a magnetic drill. It's a go-to in structural steel, shipyards and fab shops. This is a single piece listing.

✅ Brand: Link
✅ Mfr part number: 50-CO-185
✅ Product type: Counterbore
✅ Pack size: Single, 1 piece
✅ Size or length: 5/16"
✅ Additional size: 3/8"
✅ Additional size: 5"
✅ Flutes: 3

💡 What is an annular cutter and why use it instead of a twist drill?

Annular cutters only cut the rim of the hole, so they work faster with less power.

• They leave a solid slug instead of turning it all to chips.
• Cuts are cleaner and more accurate than twist drills in steel.
• They run great on magnetic drills for big holes.

Pick up the Link 5/16" Co 3Fl 0.343 Pilot X 0.507 Cbore 3/8" Shank X 5" Oal and keep your jobs moving.