Value Collection 720-3146 Square End Mill 1-3/4 in 4 Flute Hss

Product Description

The VALUE COLLECTION 720-3146 is a single-end square end mill designed for milling flat surfaces, shoulders, slots, and profiles in a wide range of ferrous and non-ferrous materials. Built from M2 high speed steel with a bright uncoated finish, this end mill measures 1.75 inches in diameter with a 2-inch length of cut. The 4-flute, right-hand cutting spiral geometry provides a balance of chip evacuation and surface finish suited to conventional milling operations. A 30-degree helix angle supports smooth cutting action across typical shop materials. Installed by machinists and tool-and-die professionals on manual or CNC milling machines, this is a standard fractional-inch tooling choice for production and maintenance environments.

This end mill fits standard milling applications where a 3/4-inch shank diameter is required. With a 4.5-inch overall length and regular length classification, it is appropriate for general-purpose face milling, peripheral milling, and slotting operations on manual knee mills and CNC vertical machining centers. The bright uncoated finish suits dry cutting or flood coolant applications across a broad material range. It is not center-cutting, so ramp entry or pre-drilled starting holes are required for plunge cuts.

Key Features

• 1.75-inch mill diameter with 2-inch length of cut for substantial material engagement
• M2 high speed steel construction provides toughness and wear resistance at moderate cutting speeds
• 4-flute right-hand spiral geometry balances chip clearance and finish quality
• 30-degree helix angle promotes smooth, low-vibration cutting action
• Bright uncoated finish compatible with dry or flood coolant machining
• Single-end design; not center-cutting — requires pre-drilled or ramped entry for plunge operations

Compatibility

Designed as an OEM-style replacement or standard tooling option for milling machines accepting a 3/4-inch straight shank end mill in the fractional-inch tooling system.

Installation Notes

Installation should be performed by a qualified machinist. Secure the shank in an appropriate end mill holder or collet chuck, ensuring the full shank engagement depth recommended by the toolholder manufacturer. Power down and lock out the spindle before installing or removing the end mill. Verify runout with a dial indicator before beginning a cut, as excessive runout reduces tool life and surface finish quality.