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do not pull it off with the tugger, (8 raps a min is about as fast as you should reverse the drum any fast and the crew will not be able to keep up) the idea of taking it up the derrick is to keep it from picking up rubbish that it would do if it were laid out on the floor. Once you get to the cut off point secure the hanging wire from pulling from the sheave, wrap the drill line at the point being cut with duct tape prior to making the cut to prevent un-laying. Cut the line and remove it from the drum remove the holding camp and check the grip if they are used, get the junk wire off the floor before starting to install the loose wire back on the drum. Line up the clamp hole on the drum so the restring wire is easy to work with, lower just enough wire from the derrick to go under the drum and back though the tie down clamp, tighten the clamp on the wire, once tight rest it back into its guide, pull the line tight but do not crimp the line by pulling on the tugger, reinstall the line back on the drawworks drum keeping the wire in the groves, After making a cut, the dead wraps should be spooled on the drum with sufficient tension to prevent excessive drum crushing of the bottom layer. once done remove the tugger and take up the slack wire, once every- thing is ready remove the hang off line and tie back in the derrick Lower the block so that the elevator tag the rotary (there must be a minimum of five raps left on the drum when the elevator tag the floor, some companies will ask for more) slowly pick back up to insure the line is spooling properly, It is a good drilling practice to have pipe in the hole while cutting and slipping if you have done this you can use the string weight to test, Ps: don’t forget to use an inside BOP on the drill string if you are not using a TDS Drilling Ton-Mile Drilling Ton-Mile is the work of drilling line that is commonly measured as the cumulative of the load lifted in tons and the distance lifted or lowered in miles. When the predetermined ton-mile limit is reached, drilling contractors will perform slip and cut drilling line to prevent drilling line fatigue. When drilling line is spooled on and off a drawworks drum during opera- tion as drilling a well, running casing, coring, etc. The drilling line get worn out; therefore, drilling contractors must cut old section and replace with new section of drilling line at specific period based on ton mile calculation. The most worn area is the end of drilling line where is constantly spooled over the draw works drum. A section of drilling line, typically around 100 ft, is cut then the drilling line is re-attached to the draw works drum and the amount cut off is spooled back on the drum. This operation is called “slip and cut drilling line”. Note: Ton-mile is the important figure that must be recorded correctly. However, the most important is to visually inspect drilling line all time to see if there is any worn out wire. If you see the worn out line, you need to cut the drilling line even though the drilling line does  not reach ton-mile limit yet. All types of ton-mile service should be calculated and recorded in order to obtain a true picture of the total service received from the rotary drilling line. There are several types of ton miles as follows; 1. Round trip ton-miles 2. Drilling or “connection” ton-miles 3. Coring ton-miles 4. Ton-miles setting casing 5. Short-trip ton-miles