3.9mm Chucking Reamer For Lathe Machine With D4 Accuracy And M35 Cobalt High Speed Steel Straight Flute Milling Cutter 6 Flutes 75mm Overall Length Shank 4mm Pro Grade Tool

1pc 3.9mm Chucking Reamer for Lathe - D4, M35 HSS
✔️ Cutting dia 3.9mm, shank 4mm, 6 flutes, 75mm long, D4

This high-precision chucking reamer is designed for lathes and drill presses, used to enlarge holes with tight tolerances and a smooth surface finish.

✅ Cutting Diameter: 3.9 mm / 0.154 in
✅ Shank Diameter: 4 mm / 0.16 in
✅ Cutting Flute Length: 18 mm / 0.71 in
✅ Total Length: 75 mm / 3.0 in
✅ Précision : D4
✅ Material: M35 Cobalt High Speed Steel (HSS-CO)
✅ Flute Type: Straight
✅ Flutes: 6

💡 What is a chucking reamer used for in precision hole finishing on a lathe? This handy tool is used for final hole sizing and surface finish. - precise hole sizing for metals and plastics - improves hole roundness and surface finish with proper lubrication - compatible with common tool holders for high-torque reaming - cutting oil helps extend tool life