2. ISO 13399

SP

APMXMaximum depth of cut
BSGBasic standard group
DCCutting diameter
DCONConnection diameter
DNNeck diameter
FHAFlute helix angle
LFFunctional length
LKSquare length
LSShank length
LTChamfer+full thread length
LUUsable length
K (DRVS)Drive (square) size
NOFNumber of fl utes
TCDCONConnection diameter tolerance
TCTRThread tolerance class
TDZThread size
THCHTType of chamfer
THLThread length
TPThread pitch
TPIThread per inch
ZEFPPeripheral eff ective cutting edge count

ROLL

ISO 13399 denomination for taps

Number of flutes (NOF) Flute helix angle (FHA)

Thread length (THL)

Usable lenght (LU)

Connection diameter (DCON)

Shank length (LS)

Functional length (LF)

Size of square (K -DRVS)

Square length (LK)

P-thread pitch (TP)

1”(25.4mm) n-thread per inch(TPI)

CARBIDE

LONG

HAND

TAPS

EG (STI)

ISO 13399 denomination for thread mills

Neck diameter (DN) Peripheral effective cutting edge count (ZEPF)

Maximum depth of cut (APMX) Usable length (LU) Cutting diameter (DC) Functional length (LF)

Shank diameter (DCON)

P-thread pitch (TP)

1”(25.4 mm) n-thread per inch(TPI)

SPECIAL

THREADS,

GAUGES

THREAD

MILLS

DIES

CENTER

DRILLS