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WhizCut Original

Back turning

With advanced cutting geometries and dual cutting zones, WhizCut Original back turning inserts deliver flawless finish, impressive feed rates, and exceptional chip control.
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Perfect the skill of back turning

By integrating advanced cutting geometries with dual cutting zones, WhizCut Original back turning tools enable a high depth of cut, deliver a flawless finish, maintain impressive feed rates, and ensure impeccable chip control in your CNC process.

Succeed with WhizCut Original back turning

  • 100% part roundness: WhizCut back turning inserts give minimum radial cutting pressure.
  • Flawless finish: Exceptional chip control when the chip is curled along the chip control groove, away from the part.
  • Improved tool life: The radius is only worn during the plunging process.
  • Time saving: Keeps the size longer without adjustment.
  • Flexible: Available in a wide range of unique geometries and highly suitable for all diameters.
Back turning WhizCut Original

MASTER COMPLEX BACKTURNING

Back turning is recognized as one of the most challenging and complex operations in precision machining. From the very beginning, WhizCut has taken on this challenge head-on.

Today, WhizCut is proud to present a comprehensive selection of WhizCut Original back turning inserts designed to not only address these complexities but to excel in performance. Our inserts are engineered to provide precision, reliability, and efficiency, ensuring optimal results in even the most challenging back turning operations.

WhizCut Original inserts, made from premium carbide and coatings, ensure prolonged part size consistency, enable higher cutting data, and minimize both cycle time and downtime. These back turning inserts are classified as K-type for radial turning.

More about K-type turning

WhizCut Original K-type inserts are versatile tools used for back turning, threading, grooving, and parting off. WhizCut offers an extensive range of these inserts, ensuring you always have the perfect tool for your specific application.

Designed with a slight tilt in the tool holder, K-type inserts provide excellent clearance and maximum stability. This design ensures that the cutting force is optimally supported by the holder, enhancing performance and precision.

The unique combination of relief angles and a stable insert pocket seat makes the K-type system ideal for use in Swiss-type lathes.

WhizCut Original K-type inserts and tool holders are engineered for optimal performance in:

WhizGuide

Select the ideal back turning insert

style
B

Style B is ideal for back turning in stainless steel, titanium, nimonic, hastaloy, high-temperature alloys, alloyed steel, and other hard, long-chipped materials requiring good chip control.

style
C

Use Style C flat top inserts for undercuts.

style
BP

Style BP is for sticky materials prone to edge build-up, which can spoil the surface finish or reduce tool life. 

style
VLR

Style VLR is used for back turning when a smooth surface is needed when profiling. Such as going in behind the head of a bone screw.

style
BT

Style BT inserts have a chamfer on the leading corner to improve tool life in harder materials. Use them when Style B inserts show early wear.

style
E

Style E is used for finishing operations with high cutting speed and low feed rate, ensuring the best surface finish. The wiper protects the radius, extending tool life compared to conventional full radius inserts.

Product tables

Backturning inserts — WhizCut Original

Back turning original b
Style B, BP, BT
Back turning original c
Style C
Back turning VLR
Style VLR
Back turning original e
Style E

Inserts for back turning | Style B

Filter inserts:

InsertsRight/LeftL A*BCRVAxial rake angleRadial rake angle8MB8C8F8ND8NF8Turning type
K11EL B12-2-0Left11210,4015°12°--Finishing
K11EL B12-3-0Left113,51,50,6015°12°--Roughing, Finishing
K15EL B12-2-0Left152,51,30,5015°12°--Finishing
K15EL B12-4-0Left1541,90,7015°12°Roughing, Finishing
K15EL B12-4-05Left1541,90,70,0515°12°Roughing, Finishing
K15EL B12-4-1Left1541,90,70,115°12°Roughing, Finishing
K15EL B12-4-2Left1541,90,70,215°12°Roughing, Finishing
K11ER B12-2-0Right11210,4015°12°--Finishing
K11ER B12-2-05Right11210,40,0515°12°--Roughing, Finishing
K11ER B12-3-0Right113,51,50,6015°12°--Roughing, Finishing
K15ER B12-2-0Right152,51,30,5015°12°--Finishing
K15ER BP12-2-0Right152,51,30,5020°12°14°---Finishing
K15ER BP12-2-03Right152,51,30,50,0320°12°14°---Roughing, Finishing
K15ER BP12-2-05Right152,51,30,50,0520°12°14°---Roughing, Finishing
K15ER B12-4-0Right1541,90,7015°12°Roughing, Finishing
K15ER BP12-4-0Right1541,90,7020°12°14°---Roughing, Finishing
K15ER B12-4-05Right1541,90,70,0515°12°Roughing, Finishing
K15ER B12-4-1Right1541,90,70,115°12°Roughing, Finishing
K15ER BP12-4-1Right1541,90,70,120°12°14°-Roughing, Finishing
K15ER B12-4-2Right1541,90,70,215°12°Roughing, Finishing
K15ER BP12-4-2Right1541,90,70,220°12°14°-Roughing, Finishing
K15ER BT12-4-2Right1541,90,70,215°12°Roughing
K20ER B12-7-0Right2073,21,3015°12°--Roughing, Finishing
K20ER B12-7-2Right2073,21,30,215°12°Roughing, Finishing
K20ER B12-7-4Right2073,21,50,415°12°Roughing, Finishing
K20ER BT12-7-2Right2073,21,30,215°12°Roughing
*A=Depth of cut in one pass
Go to matching tool holders

Inserts for back turning when an undercut is required | Style C

Filter inserts:

InsertsRight/Left A*BCV1V2Rake angle8MB8C8F8ND8NF8
K15EL C0-3-0Left31,90,245°20°
K11ER C0-1-0Right1,310,245°30°--
K15ER C0-3-0Right31,90,245°20°
K15ER C0-1,27-0Right31,50,12728°-
K15ER C0-2,5-0Right31,50,2528°-
*A=Depth of cut in one pass
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Inserts for back turning profiles | Style VLR

Filter inserts:

InsertsLABR1R2VRake angle8MB8C8F8ND8NF8
K15ER VLR12-0415310,040,0435°20°--
K15ER VLR12-051531,90,050,0535°20°--
K15ER VLR12-081531,90,080,0835°20°
K15ER VLR12-121531,90,10,235°20°
K15ER VLR12-151531,90,150,1535°20°
K15ER VLR12-21531,90,20,235°20°
K15ER VLR12-2-281531,90,20,228°20°
K15ER VLR12-415320,40,442°20°-
K15ER VLR8-215320,20,242°
K15ER VLR8-2L15620,20,242°
K15ER VLR8-415320,40,442°-
K15ER VLR8-4L15620,40,442°-
K20ER VLR12-15-282093,40,150,1528°20°
K20ER VLR12-22093,40,20,237°20°
K20ER VLR12-2-282093,40,20,228°20°
K20ER VLR12-42093,40,40,437°20°
K20ER VLR12-4-282093,40,40,428°20°
K20ER VLR8-22093,40,20,240°
K20ER VLR8-42093,40,40,437°
K20ER VLR8-62093,40,60,633°
Go to matching tool holders

Inserts for super finish back turning | Style E

Filter inserts:

InsertsMax apCtR1R2VV8MB8F8
K15ER ED16-05-150,800,60,050,1530°16°
K15ER ED16-1-20,800,50,10,230°16°
K15ER ED16-180,800,60,180,1830°16°
K15ER EN16-01-01,30,120,60,01045°16°
Total depth of cut is 3 mm.
Depth of cut in one pass equals MAX CUT.
Go to matching tool holders