Technical Information
Punchrite® BALL LOCK ACCESSORIES
Recommended Press FitBALL
Limits LOCK ACCESSORIES
SOFT PLATES HARDENED PLATES
PUNCHES
Nominal Press Fit Dia. Retainer Hole Retainer Hole
Interference Interference
Dia. Limits Limits Limits
PILOTS
D HIGH LOW HIGH LOW MIN. MAX. HIGH LOW MIN. MAX.
DIES 1/4 – 1/2 +.0005 +.0002 +.0000 -.0005 .0002 .0010 +.0000 -.0002 .0002 .0007
GUIDES 5/8 – 1 +.0005 +.0002 +.0000 -.0014 .0002 .0019 +.0000 -.0005 .0002 .0010
1-1/4 – 1-1/2 +.0005 +.0002 +.0000 -.0020 .0002 .0025 +.0000 -.0008 .0002 .0013
Punch to Die Clearances
A B C D E
CUTTING EDGES: Burr: Tensile and Burr: Tensile and Burr: Tensile Burr: Tensile Burr: Tensile and
.002 TO .006 CORNER Compressive Compressive Extrusion
BREAKDOWN Moderate Large
Minimum Minimum Roll-Over Roll-Over Very Large
BURR AND BURNISHED Roll-Over Roll-Over Roll-Over
LENGTHS INCREASE AS
CUTTING EDGES BREAK
DOWN
DURATION OF RUN:
LONGER RUNS AS
CLEARANCES INCREASE
EJECTOR PUNCHES REQUIRED
MATERIAL TOTAL CLEARANCE IN PERCENT OF MATERIAL THICKNESS
ALUMINUM – HARD 1 - 2% 10 - 12% 18 - 20% 25 - 28% 40% Max.
– SOFT 1 - 2% 4 - 8% 12 - 16% 16 - 20% 34% Max.
BRASS – 1/2 HARD 1 - 2% 6 - 10% 12 - 16% 18 - 22% 48% Max.
– ANNEALED 1 - 3% 4 - 6% 12 - 16% 16 - 20% 42% Max.
BRONZE, PHOSPHOR 3 - 5% 7 - 10% 20 - 24% 25 - 27% 50% Max.
COPPER – 1/2 HARD 2 - 4% 6 - 10% 12 - 16% 18 - 22% 50% Max.
– ANNEALED 1 - 2% 4 - 8% 10-14% 16 - 18% 50% Max.
LEAD 3 - 5% 8 - 12% 13 - 15% 16 - 20% 44% Max.
MAGNESIUM 1 - 2% 3 - 5% 7 - 9% 10 - 14% 32% Max.
STAINLESS STEEL 2 - 4% 6 - 10% 18 - 22% 25 - 27% 46% Max.
STEEL – CRS (1020) 2 - 4% 10 - 14% 16 - 20% 23 - 25% 42% Max.
– HIGH CARBON 5 - 10% 22 - 26% 28 - 32% 34 - 38% 50% Max.
DS514-1 02/07
The Anchor Danly Company © 2007 Punchrite 1
