Is there a tool to pre-broach the key slots for the Clinserts?

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For very hard materials with a hardness greater than 30 HRC or 300 Vickers it is necessary to pre-broach the slots for the kees.The first step is to mark the position of the kees on the parent material. To do this wind the keensert in until the kees touch the surface of the parent material. Mark the positions of the kees and unwind the keensert. Then line up the blades of the broaching tool with the marked positions and push it in with a hammer or under a press, remove the tool and install the keenserts. In some cases it may be necessary to run the tap back down the hole to clear out any burrs.

The broaching tool is available for external thread M5 and external imperial thread 1/4“ and up.

Take care, inch broaching tools can cost up to 6000 USD per tool, with a typical lead time of 16-18 weeks

we offer less expensive tools that can do the same job in our clinsert range:

Please verify with your customer if he requires 4 spare blades?
These can break if you manipulate the tool in a wrong way, or if you need to prepare too many holes.

What are the partnumbers for these tools?

Part No. Description
BMT6.9-2 Broach Tool for CLM5X0.8
BMT8.8-2 Broach Tool for CLM6X1.0
BMT10.8-4 Broach Tool for CLM8X1.25
BMT8.8-2 Broach Tool for CLHM5X0.8
BMT10.8-2 Broach Tool for CLHM6X1.0
BMT12.8-4 Broach Tool for CLHM8X1.25

A broaching tool can be very expensive (around 6000 USD) and lead times of 16 weeks

Part N°


BT1062-4 Broaching tool for external threads of 1 1/8”-12
BT1312-4 Broaching tool for external threads of 1 3/8”-12
BT272-2 Broaching tool for installing CL1032J External threads of 5/16”-18 ; spare blades BB1WKE-4

Please note that each broaching tool is different.

By changing the blades, you won't be able to change to a different Clinserts

More information also availabe in the link below:

Is there a tool to pre-broach the key slots for the Keenserts?