Sgs 77151 Square End Mill 3/8 in 7 Flute Solid Carbide

Product Description

The SGS 77151 is a solid carbide square end mill designed for precision material removal in CNC machining and manual milling operations. It features a 3/8 inch cutting diameter, a 1-1/8 inch length of cut, and a 3-1/4 inch overall length. The 7-flute geometry with a variable helix angle of 37 degrees reduces harmonic vibration and improves surface finish at higher feed rates. A TiN finish provides added surface hardness and lubricity. This tool is installed and operated by machinists and CNC operators working in production and job-shop environments.

The SGS 77151 belongs to the Series 77 long-reach end mill family and is suited for slotting, profiling, and peripheral milling in a range of metallic and non-metallic workpiece materials. Its chipbreaker geometry helps manage chip evacuation during deeper cuts. The straight-cylindrical shank with h6 tolerance fits standard ER collets and end mill holders without modification. It is appropriate for applications requiring extended reach beyond what standard-length end mills can provide.

Key Features

• 7-flute variable helix design at 37 degrees reduces chatter and improves surface finish
• Solid micrograin carbide construction provides rigidity and wear resistance
• TiN finish increases surface hardness and reduces friction at the cutting edge
• Chipbreaker geometry aids chip evacuation in deep slotting and profiling operations
• Long series length with 1-1/8 inch LOC supports extended reach applications
• Right-hand cut, right-hand spiral flute configuration compatible with standard CNC spindle rotation

Compatibility

Designed for use with workpiece material codes H, K, M, N, P, and S, covering cast iron, non-ferrous metals, stainless steel, non-metals, steel, and high-temperature alloys. Fits standard straight-cylindrical end mill holders and ER collet chucks accepting a 3/8 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool changer or collet is de-energized before seating or removing the end mill. Verify collet or holder bore cleanliness and confirm proper stick-out length before tightening to the tool holder specification. Do not exceed the tool manufacturer's recommended depth-of-cut or feed-per-tooth values for the workpiece material being machined.