5.8mm Chucking Reamer HSS Cobalt M35 Lathe Tool D4 With 6 Straight Flutes Round Shank Milling Cutter For Stainless Steel, Alloy, And Copper Metal 2pc Set Pro Grade

Two-piece 5.8mm chucking reamer for metal working, pro grade
✔️ D4 accuracy, M35 cobalt HSS; 6 straight flutes, 24mm flute length

This pro-grade chucking reamer is built from high-speed steel with cobalt (M35) for durable, precise reaming in stainless steel, alloy steel, and copper. The round shank fits most tool-holding systems, making it ideal for through and blind-hole work on lathes, milling machines, and drill presses.

✅ 5.8 mm cutting diameter (0.23"), flute length 24 mm (0.94"), overall length 90 mm (3.54")
✅ HSS cobalt M35 substrate provides wear resistance and heat tolerance
✅ 6 straight flutes promote efficient chip evacuation and clean holes
✅ Uncoated surface offers predictable performance across metals
✅ Round shank fits most tool-holding systems and supports light cuts

💡 How does a chucking reamer with M35 cobalt HSS improve precision in metal finishing?

In practice, the cobalt-infused steel boosts hardness and heat resistance for reliable, tight holes.

- The 6-flute straight design helps evacuate chips quickly - Tight tolerance maintenance with D4 accuracy in stainless and copper - Durable, heat-treated base without coatings for consistent results