Working in unison with top and axial clamps, the holder’s locating system uses two horizontally oriented pins that rest at specific distances from the bottom of the insert pocket. The exact points on the insert where these pins make contact are the same points that Seco works with when grinding the insert’s threading profile.
The two-pin system ensures extremely precise insert positioning from insert to insert as well as plays a key role in the holder’s increased rigidity and insert support. As a result, the holder helps reduce the number of threading passes required to produce a full thread profile.
The holder’s pocket seat surface pattern features milled scallops that provide even more chaser insert support. When the insert is mounted in the pocket, the clamping force acts on the scallop pattern and work hardens the seat surface to a hardness of 54HRc.
Seco also equipped the holder with high-pressure coolant directed at key cutting areas of the insert. Coolant enters the holder from the back end, travels through the insert cavity directly to the insert’s chipformer and into the channels between each tooth. With a maximum output of 210 bar, the holder delivers the industry’s highest coolant pressures for thread chasing operations.
The new thread chaser holder comes in two versions, P1 for 15.875 mm thick (.625") inserts and P5 for 25 mm thick (.984") inserts. Chipformer sizes come in 3.97 mm (.156") and 3.18 mm (.124").
For more information on the new thread chaser holder, please contact a local Seco representative or visit www.secotools.com/threading.
Headquartered in Fagersta, Sweden and present in more than 50 countries, Seco Tools is a leading global provider of metal cutting solutions for milling, turning, holemaking and toolholding. For more than 80 years, the company has provided the technologies, processes and support that manufacturers depend on for maximum productivity and profitability. For more information on how Seco’s innovative products and expert services bring success to manufacturers across all industry segments, please visit www.secotools.com.