PreciseBits MN408 Stub Endmill

Overview

These PreciseBits brand end mill bits feature a four flute modified fish-tail point eliminates backside breakout and splintering. The cutting edge geometry virtually eliminates chatter at high feed rates while the high flute volume supports high feed rates / chip loads. The flute geometry enhances rigidity for more accurate, single pass cutting at high chip loads.

• Machining mild steel tool steel and stainless steel (with cutting fluid)
• Machining non-ferrous and precious metals for jewelry fabrication
• Machining steel counter-plates for steel-rule dies(with cutting fluid)
• Cutting and shaping cast iron (with cutting fluid)

• Geometry: 4-flute stub, 1/8" (3.18 mm) shank, modified fish-tail point
• Length: 1.50" ±0.010"
• Diameter tolerances:
  • 0.1250": +0.0000", -0.0020"
  • 0.0625" to 0.1200": ±0.0010"
  • 0.0010" to 0.0624": ±0.0005"
• Shank dia. 0.1248" (3.18 mm) +0.0000", -0.0002"
• Max runout (TIR)" < 0.0005"
• Max. depth of cut: DOC varies by diameter ±0.005" typically 1.5X dia.
• Anticipated Life: material and cutting environment dependent
• Material: solid submicrograin carbide
• Ring Set: 0.800" ±0.002" (optional)
• Operating RPM: CNC certified operation 20k RPM to 100k RPM

Bit sizes