BLUEROCK Tools Model MWS-808D Manual Wire Stripper. DON'T WASTE TIME WITH THE OTHER MANUAL WIRE STRIPPERS THAT YOU HAVE TO ADJUST EVERYTIME YOU CHANGE WIRE SIZES!!! THIS MACHINE AUTOMATICALLY ADJUSTS!!!! What separates this manual machine from the competition is the above statement. Anyone that's used a standard wire stripper knows that it takes a lot of time and man power to adjust the blade up and down and up and down. This machine saves you that time. Basically there is 1 set of cutter/roller. It's made to cut the tops of wire. The spring loaded mechanism on the top allows you to adjust the tension of the cutters depending on what wire or jacket size you are cutting- this prolongs the blade life. We carry spare parts in stock for this machine, so if you need anything in the future, feel free to contact us. Spare Blades are $5 per blade and there are 9 blades per machine. Note: The drill shaft is most suitable for continuous smaller/medium size wires. It's not made for continuous large wire operations. It can put excess stress on the shaft over time making it vulnerable to breakage. It's fine for ocassional use on larger wire, but if you're only planning on running large wire (like 250 mcm and over) you're better off with one of our larger electric machines. Let us know if you have any questions.