Boring Bar Catalogue Numbering System How Do Catalogue Numbers Work? Each character in our catalogue number signifies a specific trait of that product. Use the following key columns and corresponding images to easily identify which attributes apply. A32SDCLNL12KC04 A 32 S D C Bar Type Bar Diameter Bar Length** Insert Insert Shape Holding Method A 3 = F D A3.5=G Steel bar with coolant Metric: 4 = H4.5=JA two-digit number5=K B indicates the bardiameter in mm.5.5= L S If the diameter is 6 = Mrepresented by a6.5=N C Steel bar without one digit number, a 7 = Q coolant 0 (zero) will be used 8 = R C in front of it. 10 = S D C Example:8mm = 08 12 = T14=U Carbide bar 16 = V18=W E 20 = Y D **Used only H when more than DeVibrator bar one length is S with coolant available or a special length K is required. D Tunable bar L with coolant M E Carbide barwith coolant P O B P DeVibrator R H Interchangeable S head L T Heavy metal bar with coolant V W C54 widia.com