CoroMill 328 Grooving, threading and circlip grooving

A versatile cutter which can be used for many types of grooves, threads and chamfers; machining of eccentric components e.g. gearbox casings, and high volume assemblies, mainly on machining centres and rotating units on lathes.

Benefits

• Inserts mounted in pockets for safe and stable mounting
• Economical insert with three edges
• Large programme of inserts covering circlips, slots, threads, etc.
• Low cutting forces
• Sharp precision-ground insert
• Different thread pitches possible with one tool
• Excellent for both internal and external machining

Features

• Comes in four tool holder sizes with the same insert size
• Sharp cutting edges for high quality grooves without burr
• One grade; PVD coated GC1025 for all materials
• Multiple edges for economic machining

Application

• Thread milling
• Grooving
• Circlip grooving for holes over diameter 39 mm (1.535 inch)

ISO application area

 

Recommendation

Product Range 

• Inserts for both circlip and chamfering in one operation, widths 1.1–5.15 mm.
• Circlip inserts, widths 1.30-5.15 mm
• 2-8 inserts, each with three indexable cutting edges for high productivity and economy
• With Weldon (B), arbor (Q) and bore with keyway mounting (S)

Insert:
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​Grooving and circlip grooving	​Circlip grooves with chamfer	Threading
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​	​	​Pitch 1.5–6 mm (16-4 t.p.i)   Partial profile 60° V-profile   Metric 60° (full profile) UN 60°
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Other profiles can be offered as specials, please contact your Sandvik Coromant representative. ​ ​