Products >> Boring Tools >> Boring Range .787"-8.000"
TWIN CUTTER BORING HEADS: SERIES 319 SW & 315 TWN
Boring Range .787"-8.000" (20mm-203mm)
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The 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.
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.
A product of: 
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SERIES 319 "SW" ROUGH BORING HEADS
DIAMETER .787"-8.000"
Precision ground serrated mating surfaces.
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- Diameter range of .787" (20mm) to 8.000" (203mm)
- KAB1-KAB5 & CKN6-CKN7
- Different roughing methods without additional components and without length adjustment
- 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 639-1 CHAMFERING INSERT HOLDERS FOR SERIES 319 SW
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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 639-1 BACK BORING INSERT HOLDERS FOR SERIES 319 SW
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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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KAISER 315 twin cutter boring heads are designed for heavy duty rough boring and semifinishing
operations. Their compact, sturdy design and positive geometry allow almost chatter free
operation even in interrupted cuts and high cutting speeds. Twin cutter boring heads can outperform
single cutter finishing heads by a factor of up to 4 times. Large stock allowances and high
feed rates permit high production while assuring optimum bore roundness and location, two
important quality features for today's tighter control of part geometry. In many cases, these tools
can eliminate the need for semi-finishing cuts due to the superb balance of cutting forces, even
under the most severe casting core shift.
KAISER 315 series tools use ISO standard inserts with positive cutting geometry for
reduced cutting forces. The top clamp free mounting of the inserts and wide open chip spaces
between the insert holders allows perfect chip formation and evacuation. Different grades and
geometry's of carbide and silicon nitride inserts are available to optimize all application criteria.
A product of:
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SERIES 315 "TWN" ROUGH BORING HEADS
DIAMETER .787"-8.000"
Precision ground mating surfaces. |
- Diameter range of .787" (20mm) to 8.000" (203mm)
- Highest stability and rigid tool assembly for large stock
allowances and feed rates
- Wide open spaces for unhampered chip formation and
chip evacuation
- Large, ISO standard positive geometry inserts for
reduced cutting forces
- Increased work range for each head for maximum
versatility and flexibility
- Program "TWN" for heavy duty, economical rough
boring for most applications
- Program "TWV" with independent height adjustment has been discontinued-please refer to Series 319 SW boring heads for stepped-cutting applications
- Series 638 insert holders available with CCMT or SCMT type inserts
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SERIES 315 BACK BORING
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SERIES 315 CHAMFERING
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The 315 program back boring insert holders
attach to KA3-KA6 rough boring heads and
compliment the back boring capabilities of
the 310 finish boring program.
BACK BORE AND ENTRY BORE DIAMETERS
| MAXIMUM BODY DIAMETER "B" |
B max = (2xC) -A |
| MAXIMUM BACK BORE DIAMETER "A" |
A max = (2xC) -B |
| MINIMUM ENTRY BORE DIAMETER "C" |
C min = (A+B)/2 |
INSERT HOLDER FOR CHAMFERING WITH ADJUSTABLE CHAMFERING ANGLE
These insert holders are made for front chamfering on the twin cutter boring heads TW41-TW148 and cover the
diameter range from ø1.142"- 8.190". The desired chamfering angle is adjustable from 15º to 75º. Sold individually.
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Please note: The Series 314 RW boring heads have been discontinued from the standard product line. These boring heads are still available as special production items. Please consult BIG KAISER Engineering Dept. for more information.
Insert holders Series 637 as well as spare parts for 314 boring heads are still available from stock.
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