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Abbreviations
HW = Tungsten carbide tipped
HWM = Solid tungsten carbide
HS/HSS = High speed steel
SP = Alloyed tools steel
HL = High alloyed tool steel
HPS = High performance steel
HCS = High carbon steel
BIM = Bimetal
DP = Polycrystalline diamond
Z1 = One cutting edge
Z1 + 1 = One plus one cutting edge
Z2 = Two cutting edges
V1 = One spur
V2 = Two spurs
MEC = Mechanical feed
MAN = Manuel feed
RH = Right rotation
LH = Left rotation