Page 24 - Threading_Handbook

INTRODUCTION Multi-Tooth FINISH

SEMI-FINISH
ROUGHING

Multi-tooth tools produce a full profile of the requested thread. These tools, usually
have two or three cutting teeth. The thread profile is produced by the last tooth and the
previous teeth (or tooth) are used for rough and semi-finish operations, thereby facilitating
the work of the last tooth. These tools are recommended for mass production.

Advantages of Multi-Tooth Tools
• Finish the thread in one operation

• Reduces the number of passes for high productivity – multi-tooth tools are similar to
full profile tools but have more than one cutting point (two-pointed tools give double
productivity, three-pointed tools give triple, etc.)

• Ensures longer tool life
• Ensures correct depth of thread
• No deburring

Disadvantages of Multi-Tooth Tools
• Can not work next to shoulder and requires wide thread relief
• High cutting forces

• Requires a larger variety of items in the workshop

The ISCAR catalog of thread products contains all types of threading solutions.

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