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Rod insert for S-type Internal Punch
 
Rod insert for S-type Internal Punch Quantity in Basket: None
Catalog No.: PUNCH-SI
Price: $35.00
Shipping Weight: 0.10 pounds
 
Select type of punch insert:
Cavity-forming (with projection on tip)
Tip ejector with cavity in punch tip
Select style of tip insert:
Ultra Low Drag TIP (ULD-TIP)
Pin Point TIP (25-deg nose cone)
Rod diameter in inches (marked on end of die):
Punch sync length 1:
Punch sync length 2:
Optional Note:
 
Quantity:
 
cavity forming punch insert cavity forming punch insert
This is a rod inserted into a punch head, and held with a set screw. It is used as a replacement part for point forming die ejection punches for the TIP seating/forming type of dies (two different kinds of punches).

For the ULD-TIP and PIN POINT dies, there are four important pieces of information required.
  1. First is the type of punch, either the cavity-forming type with a projection on the tip, or the tip-ejecting type with a cavity machined in the end.
  2. Second is the diameter of the rod, which must fit the hole in the threaded end of the die. This number is marked on the die as a decimal such as .157 or .161 (or other size).
  3. Third, for the cavity forming punch, the first sync length of the punch relative to die cavity is important. This is actually two different numbers, one related to the overall length of the die and the other to the position of the punch within a particular die's cavity. Both are are written on the die and the punch head. For the numbers will be an integer (whole number) with a 3 digit decimal, in most cases.
  4. Fourth, the second sync length number which is similar to but shorter than the first one. Both are written on the original die body and on the head of the original punch. Again, this is a whole number followed by a 3 digit decimal.
Length is critical for the punch with the projection on the end, not quite so critical for the second or ejector as it does not have to project into the cavity a specific amount.

The ULD-TIP style works for the TIP-30 and TIP-50 style ULD inserts. The PIN POINT style works with the PIN POINT TIP-45 style 25-degree nose cone inserts, which are used for making shorter length high BC bullets from 9mm to .510 caliber, but are especially useful for the .45 caliber air gun, muzzle loader, and short cartridge rifle rounds like the .450 Bushmaster. The two kinds of tips use different punch shapes and dimensions, so be sure to select the correct one for your application.

NOTE:
These are standard shapes and dimensions made to match Corbin's tip inserts. As such, they are made and stocked in quantity, and have standard dimensions within the options shown. This keeps their cost per indibvidual unit much lower than if they were custom built one at a time, with the required engineering drawings, jigs, fixtures, laps, reamers, and invidual machine set-ups needed to make either one, of a hundred, regardless. In other words, if you try to use the "note" to specify some custom design, the price no longer will apply. We can't spend four or five hours making one part for the same price per part as if we were to built a dozen of them and just take one off the shelf when you order the standard shape and size. We might spend almost the same time making a dozen standard parts as it takes to make the ship drawings, built any special tooling needed or do the individual machine setups to make one part to order. This is why two parts that are "almost" the same appearance may vary widely in price -- one is standard, and most of the preliminary planning, tooling and drawings have long ago been prepared, the other may require all of this plus a setup for just one part. Custom inserts and complete punches may in fact be close enough to the same amount of work to build that a custom punch is about the same price and quicker to make, in some cases.



Related Item(s)
Code Name Price Availability  
PUNCH-ST Punch, Internal PF for tip seating, -S $50.00  
PUNCH-HT Internal punch for TIP seating/ point form dies $50.00  
PF-1-ST Point Form/Tip Seater, -S $439.00  
TIP-30-5 ULD Tips, size 30, pk/500 $110.00  
TIP-50-5 ULD Tips, size 50, pkg/500 $120.00  





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