Patented PostMaster spades are Kimber Kable's assault on the ultimate spade design. Machined from ultra pure copper and then coated with Kimber's proprietary UltraPlate, these spades feature a unique compressible wafer between the contacts that maintains dynamic pressure on the binding post with only 'finger tight' torque. No need to use a wrench! Maintaining a constant pressure is important because it prevents impedance fluctuations due to vibration and temperature changes. Pressure ridged on the spade help to insure a gas tight seal and reduce contact resistance.Kit consists of 4 PM spades, 4 heat shrink color-coded sleeves, and two lengths of high purity silver solder.
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|Kimber Kable Postmaster Pm33 spades|
I find these spades to lock into place well. I love the pressure the put on the bindingpost. Its like a lock washer with the double spade and the waffle in the middle. I prefer them over all other spades I have used.
|- Daniel H, PA|