Boring Solutions

Accurate and cost effective, Parlec’s Boring Solutions Provide .0001" (.002mm) adjustment precision for a variety of bores along with advanced adjustable twin bore roughing systems. Precision modular component design allows for reduced inventory and stock delivery while ISO/ANSI inserts reduce production costs.


Boring

Products

Roughing Speeds

330BHN = RC 35
250BHN = RC 24-25
220BHN = RC 20
STEELS
Material BHN TT / SN VN CT
Carbon Steel C = 0.15% 125 300-450 600-800 650-1000
Carbon Steel C = 0.35% 150 300-500 600-800 625-950
Carbon Steel C = 0.70% 180-250 250-450 550-750 500-750
Alloy Steel 4000 125-200 300-500 550-750 500-750
Alloy Steel 5000 225 200-400 350-525 300-600
Alloy Steel 8000 300 200-400 300-525 350-475
Stainless Steel, Annealed 400 SERIES 150-270 250-400 400-600 475-750
Stainless Steel, Annealed 300 SERIES 150-220 300-425 350-500 550-650
Cast Steel, Low Carbon 150 200-325 450-650 400-550
Cast Steel, Low Alloy 150-250 200-300 250-400 300-425
All values are in SFM
OTHER MATERIALS
Material BHN TT / SN AL / VN AS C2
Malleable Cast Iron, Ferritic 110-150 525-700 600-1000 400-900 150-350
Malleable Cast Iron, Pearlitic 150-270 250-400 400-800 300-800 100-250
Grey Cast Iron, Low Tensile 150-220 525-800 400-900 300-1000 200-400
Grey Cast Iron, High Tensile 200-330 350-600 400-700 300-600 150-300
Nodular Iron, Ferritic 125-230 300-500 400-900 450-900 150-375
Nodular Iron, Pearlitic 200-300 250-400 400-900 350-650 100-250
Aluminum Alloys 30-120 – – – 600-1200
Aluminum Alloys, Cast 100-130 – – – 600-1200
All values are in SFM.