Fanuc G74 left hand screw tapping cycle

O5123

N10   M06 T07 ;
N20   G90 G80 G17 G00 G54 X0 Y0 ;
N30   G43 Z100 H11 ;
N40   M04 S1500 ;
N50   M08 ;
N60   G99 G74 X0 Y0 Z-35 R10 Q10  K3 F2.5 ;                       [A]

          X-10 Z-35 ;                                                                      [B]

          X10  Z-35 ;                                                                      [C]

N70   G98 G80 G00 Z100 ;
N80   M05 M09 M30 ;

DESCRIPTION OF PROGRAM

N10- Tool change command , select tool no. 7
N20- Absolute co-ordinate command , cancel canned cycle command , selection of  XY plane, rapid command, work coordinate for tool positioning at  X0 and Y0.
N30- Tool height offset compensation command , where tool is 100 along Z axis , tool hight code H11.
N40- Spindle on anti-clockwise ( for LH), speed is 1500 rpm .
N50- Coolant ON .

N60- Return to R-plane in canned cycle , left hand tapping cycle command , Depth of tapping is 35 , R- plane distance is 5 , depth of each cut is 10(incremental),no of operation repeated is 3 times , feed rate per minute is 2.5 . [first tapping position A]

Next tapping position where X-10 , Y0 and depth of tapping is z-35 .[B]

Next tapping position where X-10 , Y0 and depth of tapping is z-35 .[C]

N70- Tool is return at intial position , cancel canned cycle , rapid command where tool is 100 mm up along z axis.

N80- Spindle off , coolant off , main program end .