Sutton E1471200 12mm x 12mm 4 Flute Roughing Endmill - HSS Co.8 TiCN R30, Long Reach (DIN 844 L)

The Sutton E147 (E147 1200) is a 4 flute long reach roughing endmill (rougher) with a 12 mm cutting diameter, 53 mm flute length, 110 mm overall length and a 12 mm shank. It is made from 8% cobalt high speed steel (HSS Co.8) with a TiCN coating, has R30 helix, NR (normal) roughing geometry, designation WN and a 45° corner chamfer and a DIN 1835 form A plain shank (h6 tolerance). It is for roughing and heavy cuts in materials up to 1000 N/mm².

NR (normal) roughing geometry is designed for heavy cuts and fast stock removal, and the 45° corner chamfer is designed to protect the corner of the cutting edge. The R30 helix is designed for efficient chip evacuation, and the TiCN coating is designed for longer tool life. This is the long series (DIN 844 L), giving extra flute length for deeper cuts.

Where this product is used

• Roughing slots, pockets and shoulders before a finishing pass.
• Heavy cuts and fast stock removal in materials up to 1000 N/mm².
• Deeper roughing cuts using the long flute.
• Applications include DIY, trade, industrial, metalworking, machine shop and MRO work.

Design features

• 4 flute rougher, R30 helix, NR (normal) roughing geometry (designation WN).
• NR geometry: designed for heavy cuts.
• 45° corner chamfer.
• HSS Co.8 (8% cobalt): designed for strength, hardness and wear resistance.
• TiCN coating: designed for longer tool life.
• Din 1835 form a plain shank.
• Suitable for materials up to 1000 N/mm².

Using the endmill

• Hold the endmill in a milling chuck, collet or side-lock holder that suits the shank and runs true.
• Use cutting data suited to the material, and keep the tool clamped as short as the job allows.
• Use cutting fluid or coolant where the material and machine allow it.

Key specifications

Related products

Related Sutton endmills and slot drills: E145 regular roughing endmill, E126 4 flute endmill and E184 2 flute long slot drills.