Twin Cutter Rough Boring Heads

Series 319 SW

Boring Range .787"-8.000" (20mm-203mm)


The BIG KAISER 319 SW series twin cutter boring heads are the newest design in our twin cutter boring program. As with the 315 series, 319 is designed for heavy duty rough boring and semifinishing operations. Different accessories also permit chamfering, back boring and face grooving.

This new twin cutter series has a unique design feature allowing different roughing methods without the need to change components or use mechanical systems to adjust insert height. Simply reverse the insert holders to switch between balanced and stepped cutting!

Ground serrations on the mating surfaces of both tool body and insert holder permit a rigid connection and an accurate tool length. A diameter scale on the insert holders allows diameter adjustment without a presetter. Tool body and insert holders are completely protected against corrosion by a high quality coating.

Please note: We have decided to change our tool connection description of KA/KAB to CK/CKB to be consistent with how the product is referred to globally. There is absolutely zero geometric difference between a tool marked KA/KAB and CK/CKB, it was simply a way to differentiate North American inch tools from metric tools sold throughout the rest of the world.

Twin Cutter Rough Boring Heads
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SERIES 319 "SW" ROUGH BORING HEADS DIAMETER .787"-8.000"

SERIES 319 "SW" ROUGH BORING HEADS DIAMETER .787"-8.000"

  • Diameter range of .787" (20mm) to 8.000" (203mm)
     
  • CKB1-CKB5 & CKN6-CKN7
     
  • Rotationally symmetrical roughing (RSS), for stock removal up to 10% of the final bore diameter with high feed rates. Double offset roughing (DVS), cutting edges displaced in diameter and height, for stock removal up to 20% of the final bore diameter with half the feed rate
     
  • Series 639 insert holders accept large, ISO standard positive geometry inserts (CC, SC & SP) for reduced cutting forces


  • Insert holder with extended boring range for additional chip space for blind hole roughing featuring coolant-through direct to cutting edge
     
  • Coated body and insert holders for complete protection against corrosion
     
  • Height accuracy due to ground serrations on both ends between tool body and insert holder
     
  • Presetting of diameter & height without presetter thanks to fixed tool height and a diameter scale



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SERIES 319 "SW" ROUGH BORING HEADS DIAMETER .787"-8.000"


  • CKB1-CKB7 diameter range of .787" (20mm) to 8.000" (203mm)

  • All standard (steel) SW accessories and insert holders are possible including back boring, stepped cutting and chamfering

  • New face grooving holders available for face grooving


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SERIES 319 "SW" ALUMINUM ROUGH BORING HEADS DIAMETER 2.677"-8.000"


  • CKN6-CKN7 diameter range of 2.677" (68mm) to 8.000" (203mm)

  • High strength aluminum tool body for reduced tool weight

  • Ideal lightweight solution for rough boring on 30 and 40 taper size machines with limited tool weight for automatic tool change

  • All standard (steel) SW accessories and insert holders are possible including back boring, stepped cutting and chamfering



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SERIES 639-1 CHAMFERING INSERT HOLDERS FOR SERIES 319 SW


These insert holders are made for front and back chamfering on the twin cutter roughing heads Series 319 SW41-SW148 and cover the diameter range ø1.299"-8.268". The desired chamfering angle is adjustable from 15°-75°.

The set contains one insert holder and one blank piece.

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SERIES 639-4 BACK BORING INSERT HOLDERS FOR SERIES 319 SW


These insert holders are made for back boring with the twin cutter rough boring heads Series 319 SW32-SW148 and cover the diameter range from ø1.732"-8.307".

The set contains one insert holder and one blank piece.

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SERIES 639-6 FACE GROOVING HOLDERS FOR SERIES 319 SW


These face grooving holders are made for the twin cutter rough boring heads series 319 SW53-SW148 and cover the diameter range from ø2.087"-7.992".

The set contains both face grooving holders.
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SERIES 639-6 FACE GROOVING HOLDERS FOR SERIES 319 SW


These face grooving holders are made for the twin cutter rough boring heads series 319 SW53-SW148 and cover the diameter range from ø2.087"-7.992".

The set contains one insert holder and one blank piece.