GBP
EUR
USDKennametal Top Notch Grooving Boring Bars
Top Notch™ Grooving Tools and Beyond™ Inserts for Your Shallow Groove and Turn Operations
Primary Application
Top Notch Grooving is the proven solution for high productivity. The Top Notch system provides consistent tool performance, accurate indexing, and superior clamping to provide excellent surface finishing and superior tool life.
Features and Benefits
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Click through to the products to see videos of them in action, and also find their related matching tools.
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A-NNT-L
Product Code D min D L1 F CS A12MNNTOL2 » 18.50 12.00 150.00 11.00 1/16-27 NPT A16MNNTOL2 » 22.00 16.00 150.00 11.00 1/8-27 NPT A20QNNTOL2 » 26.00 20.00 180.00 13.00 1/8-27 NPT A25RNNTOL2 » 34.00 25.00 200.00 17.00 1/4-18 NPT A25RNNTOL3 » 34.00 25.00 200.00 17.00 1/4-18 NPT A32SNNTOL3 » 44.00 32.00 250.00 22.00 1/4-18 NPT A40TNNTOL3 » 54.00 40.00 300.00 27.00 1/4-18 NPT A40TNNTOL4 » 54.00 40.00 300.00 27.00 1/4-18 NPT A50UNNTOL4 » 70.00 50.00 350.00 35.00 1/4-18 NPT 
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A-NNT -2
Product Code D min D D2 L1 L2 F A CS A12MNNTOR1 » 11.50 12.00 8.70 150.00 31.30 7.00 4.00 1/16-27 NPT 
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A-NNT-R
Product Code D min D L1 F CS A12MNNTOR2 » 18.50 12.00 150.00 11.00 1/16-27 NPT A16MNNTOR2 » 22.00 16.00 150.00 11.00 1/8-27 NPT A20QNNTOR2 » 26.00 20.00 180.00 13.00 1/8-27 NPT A25RNNTOR2 » 34.00 25.00 200.00 17.00 1/4-18 NPT A25RNNTOR3 » 34.00 25.00 200.00 17.00 1/4-18 NPT A32SNNTOR3 » 44.00 32.00 250.00 22.00 1/4-18 NPT A40TNNTOR3 » 54.00 40.00 300.00 27.00 1/4-18 NPT A40TNNTOR4 » 54.00 40.00 300.00 27.00 1/4-18 NPT A50UNNTOR4 » 70.00 50.00 350.00 35.00 1/4-18 NPT
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E-NNT -L
Carbide shank boring bars
Product Code D min D D2 L1 A E16RNNTOL2 » 22.00 16.00 200.00 11.00 5.54 E20SNNTOL2 » 26.00 20.00 250.00 13.00 7.14 E25TNNTOL3 » 34.00 25.00 300.00 17.00 7.94 
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E-NNT -R
Carbide shank boring bars
Product Code D min D D2 L1 A E16RNNTOR2 » 22.00 16.00 200.00 11.00 5.54 E20SNNTOR2 » 26.00 20.00 250.00 13.00 7.14 E25TNNTOR3 » 34.00 25.00 300.00 17.00 7.94
