Used Niagara Cutter S404 1/2" 4 Flute HSS Square End Mill – 3" LOC, 1/2" Shank, 5" OAL, 30° RH – Excellent Condition

For sale is a used but almost pristine Niagara Cutter 1/2" 4-flute square end mill (S404 series, EDP# 38162). This premium high speed steel end mill is in excellent condition and ready for immediate professional use in CNC or manual milling.

Complete Verified Specifications (directly from original label): • Cutter / Mill Diameter: 1/2" (0.500") • Length of Cut (LOC / Flute Length): 3" • Shank Diameter: 1/2" (0.500") • Overall Length (OAL): 5" • Number of Flutes: 4 • End Style: Square End (SE) – ideal for 90° shoulders, slots, and flat-bottom milling • Helix Angle: 30° Right Hand • Cut Direction: Right Hand Cut • Material: Premium High Speed Steel (HSS) • Finish: Bright / Uncoated • Series: S404

This versatile 1/2" 4-flute HSS end mill excels in CNC milling, slotting, pocketing, profiling, and general-purpose machining of steels, cast iron, aluminum, brass, and other materials. The 30° helix provides excellent chip evacuation and smooth cutting performance.

Condition Details (important – please review photos):

• Almost pristine used condition – cutting edges remain razor sharp with no chips, nicks, or visible wear
• Only very light surface marks from minimal prior use
• Still in its original blue protective storage case

What’s Included:

• One Niagara Cutter 1/2" 4-flute HSS square end mill (EDP# 38162)
• Original blue protective case with full factory labeling

Why This Tool Offers Great Value:

• Genuine Niagara Cutter USA-made quality
• Long 3" reach with standard 1/2" shank – highly versatile
• Excellent condition at a fraction of new price