Data numbers in the charts is the number of the impact roller cycles with the resultant sharpness.
E.g. “ x1 = 250, x2 = 300 “ means after 1 impact cycle the edge sharpness is 250 BESS, after 2 cycles 300 BESS, and so on.

All knives are sharpened at an edge angle of 12 dps, to initial sharpness near 100 BESS.

ABRASIVE
STEEL

Aluminium Oxide

CBN/Diamond

Vanadis 10

V 9.8 %
HRC 63

x1=243
x2=266

x3=265

x4=305

x5=312

x10=317

x15=339

x20=380

x25=355

x30=410

x35=403

x40=404

x45=416

x50=451

x60=489

x70=489

x80=490
x90=476

x100=451

x120=468

x140=522

x1=203
x2=206

x3=234

x4=268

x5=302

x10=292

x15=323

x20=348

x25=330

x30=358

x35=372

x40=409

x45=386

x50=361

x60=380

x70=389

x80=425
x90=374

x100=453

x120=411

x140=412

x160=410

x180=408

x200=418

x220=389

x240=377

x260=446

x280=434

x300=412

x320=464

x340=494

x360=463

x380=529

CPM20CV

V 4.0 %

HRC 60

x1=275
x2=282

x3=297

x4=303

x5=328

x10=331

x15=324

x20=375

x25=401

x30=391

x35=423

x40=436

x45=443

x50=450

x60=437

x70=411

x80=479
x90=464

x100=449

x120=506

x1=215
x2=196

x3=208

x4=259

x5=275

x10=312

x15=317

x20=347

x25=354

x30=349

x35=371

x40=427

x45=384

x50=394

x60=416

x70=438

x80=449
x90=456

x100=457

x120=459

x140=478

x160=483

x180=471

x200=495

x220=508

Elmax

V 3.0 %

HRC 62

x1=264
x2=290

x3=345

x4=369

x5=395

x10=402

x15=458

x20=487

x25=500

x30=495

x35=545

x40=558

x45=533

x50=607

x60=622

x70=605

x80=641
x90=618

x100=683

x1=221
x2=213

x3=246

x4=245

x5=277

x10=288

x15=312

x20=317

x25=373

x30=413

x35=380

x40=402

x45=446

x50=430

x60=455

x70=418

x80=410
x90=429

x100=482

x120=468

x140=514

Lohmann PGK

V 2.0 %

HRC 62

x1=257
x2=275

x3=300

x4=289

x5=315

x10=361

x15=347

x20=382

x25=429

x30=413

x35=464

x40=498

x45=464

x50=499

x60=502

x70=544

x80=591
x90=519

x100=545

x1=280
x2=313

x3=271

x4=357

x5=344

x10=342

x15=377

x20=366

x25=449

x30=416

x35=461

x40=458

x45=403

x50=482

x60=495

x70=484

x80=450
x90=419

x100=525

D2

V 1.0 %

HRC 60

x1=263
x2=292

x3=317

x4=337

x5=353

x10=398

x15=440

x20=478

x25=494

x30=495

x35=496

x40=478

x45=520

x50=534

x60=585

x70=602

x80=605
x90=616

x100=559

x1=216
x2=323

x3=340

x4=349

x5=328

x10=341

x15=359

x20=376

x25=400

x30=402

x35=428

x40=424

x45=434

x50=477

x60=493

x70=494

x80=506
x90=532

x100=563

CONTROL SR-101

V 0%

HRC 57-59

x1=279
x2=299

x3=337

x4=372

x5=375

x10=421

x15=470

x20=498

x25=532

x30=523

x35=520

x40=540

x45=567

x50=565

x60=622

x70=632

x80=665
x90=612

x100=666

x1=241
x2=235

x3=292

x4=315

x5=343

x10=387

x15=416

x20=428

x25=464

x30=507

x35=474

x40=514

x45=510

x50=480

x60=551

x70=630

x80=570
x90=711

x100=602