JETBROACH Cutters
Tungsten Carbide Tipped Annular Cutters
For simplicity, one-touch cutter replacement needs no tools

Rationalized Hole-cutting
Genuine one-touch cutters

Nitto Kohki has developed the one-touch replacement system for Jetbroach carbide-tipped annular hole cutters. They are designed to be mounted and removed without the use of a tool. This reduces the time needed to replace cutters.

Jetbroach Cutters are far better than twist drills:

  • No dead point
  • Peripheral cutting
  • Dramatically reduce cutting resistance
  • Available size: 9/16” - 4” diameter

Jetbroach Cutter Features

  • Carbide tips for faster cutting
  • Single pass cutting, no pilot hole required
  • Annular part does all the work so small cutting resistance reduces drilling time
  • Cutting of slanted, elongated and edge holes is now possible
  • Fractional and metric cutter sizes to suit wide range of applications
  • Produces little slag and few chips for easy disposal
  • Can also be fitted to and used with previous Atra Ace models using a hexagon socket set-screw
  • Improved concentricity extends cutter life! One-touch system consisting of three balls inside the arbor body produces a self-centering effect during cutting to improve cutter performance and life

Self-centering effect mechanism to
extended cutter life.



Feed & Speeds For Annular Cutters

A guide to the selection of circumferential cutting speeds:

 
 feet/min
m/min 
 Stainless Steel
 65 - 131
20-40
 Mild Steel
 98 - 164
 30-50
 Cast Iron
 98 - 164
 30-50
 Brass

 164 - 229

 50-70
 Aluminum
 229 - 295
 70-90

Test Drilling is very often the only way to determine the machinability of difficult materials. Use a small size cutter wherever possible in order to minimize trial costs.

Recommended Feed:
0.001”-0.004”/rev. (0.02~0.1 mm/rev.)

Click here or on image to enlarge


Cutter Diameter

Decimal Equivalent

1-3/8" Depth of Cut
Part #

2" Depth of Cut
Part #

3" Depth of Cut
Part #

 4" Depth of Cut
Part #

 11/16"

 .687

 TK00517-0

 TK00559-0

 TK01037-0

-

 17.5mm

 .689

 TK00301-0

 TK00380-0

-

-

 18mm

 .709

 TK00302-0

 TK00381-0

-

-

 18.5mm

 .728

 TK00303-0

-

-

-

 19mm

 .748

 TK00304-0

 TK00382-0

-

-

 3/4"

 .750

 TK00518-0

 TK00560-0

TK00981-0

-

 19.5mm

 .767

 TK00305-0

 TK00383-0

-

 20mm

 .787

 TK00306-0

 TK00384-0

-

-

 20.5mm

 .807

 TK00307-0

 TK00385-0

-

-

 13/16"

 .812

 TK00519-0

 TK00561-0

 TK00982-0

TK00955-0

 21mm

 .827

 TK00308-0

 TK00386-0

-

-

 21.5mm

 .846

 TK00309-0

 TK00387-0

-

-

 22mm

 .866

 TK00310-0

 TK00388-0

-

-

 7/8"

 .875

 TK00520-0

 TK00562-0

 TK00983-0

TK00956-0

 22.5mm

 .885

 TK00311-0

 TK00289-0

-

-

 23mm

 .905

 TK00312-0

 TK00390-0

-

-

 23.5mm

 .925

 TK00313-0

 TK00391-0

-

-

 15/16"

 .937

 TK00521-0

 TK00563-0

 TK00984-0

TK01056-0

 24mm

 .945

 TK00314-0

 TK00392-0

-

-

 24.5mm

 .965

 TK00315-0

 TK00393-0

-

-

 25mm

 .984

 TK00316-0

 TK00394-0

-

-

 1"

 1.000

 TK00522-0

 TK00564-0

 TK00985-0

TK00958-0

 26mm

 1.023

 TK00317-0

 TK00395-0

-

-

 1-1/16"

 1.062

 TK00523-0

 TK00567-0

 TK00986-0

TK01058-0

 27mm

 1.063

 TK00319-0

 TK00397-0

-

-

 28mm

 1.102

 TK00320-0

 TK00398-0

-

-

 1-1/8"

 1.125

 TK00554-0

 TK00568-0

 TK00987-0

TK00960-0

 29mm

 1.141

 TK00321-0

TK00399-0

-

-

 30mm

 1.181

 TK00322-0

 TK00400-0

-

-

 1-3/16"

 1.187

 TK00555-0

 TK00565-0

 TK00988-0

TK00947-0

 31mm

 1.220

 TK00323-0

 TK00401-0

-

-

 1-1/4"

 1.250

 TK00524-0

 TK00569-0

 TK00989-0

-

 32mm

 1.259

 TK00324-0

 TK00402-0

-

-

 33mm

 1.299

 TK00325-0

 TK00403-0

-

-

 1-5/16"

 1.312

 TK00525-0

 TK00570-0

 TK00990-0

-

 34mm

 1.338

 TK00325-0

 TK00404-0

-

-

 1-3/8'

 1.375

 TK00526-0

 TK00571-0

 TK00991-0

-

 35mm

 1.378

 TK00328-0

 TK00405-0

-

-

 36mm

 1.417

 TK00602-0

 TK00406-0

-

-

 1-7/16"

 1.437

 TK00641-0

 TK00572-0

 TK00992-0

-

 37mm

 1.456

 TK00603-0

 TK00407-0

-

-

 38mm

 1.496

 TK00604-0

 TK00408-0

-

-

 1-1/2'

 1.500

 TK00642-0

 TK00573-0

 TK00993-0

-

 39mm

 1.535

 TK00605-0

 TK00409-0

-

-

 1-9/16"

 1.562

 TK00643-0

 TK00574-0

 TK00994-0

-

 40mm

 1.574

 TK00606-0

 TK00410-0

-

-

 41mm

 1.614

-

 TK00411-0

-

-

 1-5/8"

 1.625

-

 TK00575-0

 TK00995-0

-

 42mm

 1.653

-

 TK00412-0

-

-

 1-11/16"

 1.687

-

 TK00576-0

 TK00996-0

-

 43mm

 1.692

-

 TK00413-0

-

-

 44mm

 1.732

-

 TK00414-0

-

-

 1-3/4"

 1.750

-

 TK00577-0

 TK00997-0

-

 45mm

 1.771

-

 TK00415-0

-

-

 46mm

 1.811

-

 TK00416-0

-

-

 1-13/16"

 1.812

-

 TK00578-0

 TK00998-0

-

 47mm

 1.850

-

 TK00417-0

-

-

 1-7/8"

 1.875

-

 TK00579-0

 TK00999-0

-

 48mm

 1.889

-

 TK00418-0

-

-

 49mm

 1.929

-

 TK00419-0

-

-

 1-15/16"

 1.937

-

 TK00580-0

 TK01000-0

-

 50mm

 1.968

-

 TK00420-0

-

-

 2"

 2.000

-

 TK00581-0

 TK01001-0

-

 51mm

 2.007

-

 TK00442-0

-

-

 52mm

 2.047

-

 TK00443-0

-

-

 2-1/16"

 2.062

-

 TK00644-0

 TK01002-0

-

 53mm

 2.086

-

 TK00444-0

-

-

 2-1/8"

 2.125

-

 TK00645-0

-

-

 54mm

 2.125

-

 TK00445-0

-

-

 55mm

 2.165

-

 TK00446-0

-

-

 2-3/16"

 2.187

-

 TK00646-0

-

-

 56mm

 2.204

-

 TK00447-0

-

-

 57mm

 2.244

-

 TK00448-0

-

-

 2-1/4"

 2.250

-

 TK00647-0

-

-

 58mm

 2.283

-

 TK00449-0

-

-

 2-5/16"

 2.312

-

 TK00648-0

-

-

 59mm

 2.322

-

 TK00450-0

-

-

 60mm

 2.362

-

 TK00451-0

-

-

 2-3/8"

 2.375

-

 TK00649-0

-

-

 2-7/16"

 2.437

-

 TK00650-0

-

-

 2-1/2"

 2.500

-

 TK00651-0

-

-

2-9/16"

2.562

-

TK00652-0

-

-

Jetbroach cutters with "One-Touch" shanks can be used in drilling machines with 3/4" side-lock arbors.

 Jetbroach Pilot Pins

1-3/8" Depth of Cut
Part #

2" Depth of Cut
Part #

3" Depth of Cut
Part #

4" Depth of Cut
Part #

UEA0835-0

UEA0850-0

UEA0875-0

UEA0800-0



Industrial Cutters with 1-1/4" Weldon Shanks*

*Industrial cutters with 1-1/4" weldon shanks use the special pilot pin #TA9A207-0

Cutter Diameter

Decimal Equivalent

3" D.O.C.
Part #

50mm

1.968

TJ16650-0

51mm

2.007

TJ16651-0

52mm

2.047

TJ16652-0

53mm

2.086

TJ16653-0

54mm

2.126

TJ16654-0

55mm

2.165

TJ16655-0

56mm

2.204

TJ16656-0

57mm

2.244

TJ16657-0

58mm

2.283

TJ16658-0

59mm

2.322

TJ16659-0

60mm

2.362

TJ16660-0

61mm

2.401

TJ16661-0

62mm

2.440

TJ16662-0

63mm

2.480

TJ16663-0

64mm

2.519

TJ16664-0

65mm

2.559

TJ16665-0

66mm

2.598

TJ16666-0

67mm

2.637

TJ16667-0

68mm

2.677

TJ16668-0

69mm

2.716

TJ16669-0

70mm

2.755

TJ16670-0

71mm

2.795

TJ16671-0

72mm

2.834

TJ16672-0

73mm

2.874

TJ16673-0

74mm

2.913

TJ16674-0

75mm

2.952

TJ16675-0

 

Cutter Diameter

Decimal Equivalent

3" D.O.C.
Part #

76mm

2.992

TJ16676-0

77mm

3.031

TJ16677-0

78mm

3.070

TJ16678-0

79mm

3.110

TJ16679-0

80mm

3.149

TJ16680-0

81mm

3.189

TJ16681-0

82mm

3.228

TJ16682-0

83mm

3.267

TJ16683-0

84mm

3.307

TJ16684-0

85mm

3.346

TJ16685-0

86mm

3.385

TJ16686-0

87mm

3.425

TJ16687-0

88mm

3.464

TJ16688-0

89mm

3.503

TJ16689-0

90mm

3.543

TJ16690-0

91mm

3.582

TJ16691-0

92mm

3.622

TJ16692-0

93mm

3.661

TJ16693-0

94mm

3.700

TJ16694-0

95mm

3.740

TJ16695-0

96mm

3.779

TJ16696-0

97mm

3.818

TJ16697-0

98mm

3.858

TJ16698-0

99mm

3.897

TJ16699-0

100mm

3.937

TJ16700-0

4"

4.000

TK01134

 

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