Side lock holders are one of the most effective and primitive designs of positive locking mechanisms. During milling operation on a tough material with an endmill, we have high torque requirements and the helix angle on the tool creates an axial force which pulls the tool out of the holder.
There are various types of Side Lock Holders like End Mill Holder, Whistle Notch Holder.
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On using a tool with higher helix, pull-out force proportionally increases. In such a case, Weldon shank holder is recommended as it can handle high torque and pull-out forces on the tools.
This tool holder has a better gripping strength than the ER collet chuck for milling operations.
End mill holder also called the Weldon Shank holder is one of the most effective and durable designs of the positive locking mechanism.
Birla Precision Technologies has manufactured these collets for the system of clamping. The flat on the shank of the tool is held in place by the set screws.
Whistle Notch Holder are similar to End Mill holders but with screws angled 2° to lock the tool against an adjustable stop end screw. As similar to End mill a securing screw is placed for the stop screw end.
A securing screw is provided for the stop end screw. The Weldon shank holder is also available in the Dual taper contact design.
