Material Removal l Cutting Tools l Carbide Insert Countersink Cutters

    Carbide cutters designed for use in microstop countersink units. Designed for countersinking stainless steel, inconel, and titanium alloys.
Pilot Number
Shank Dia. D
Head Diameter D1 +.000 -.001
Cutter in Which Used
ZT300
5/64”
When ordering, specify
head diameter desired.
Ex: ZT300-1/8
ZT150 with 5/64” Pilot hole
ZT301
1/8”
ZT150 with 1/8” Pilot hole
ZT302
3/16”
ZT150 with 3/16” Pilot hole

Countersink Cutters  
Used on Countersink Model
Cutter Dia.
D
Pilot Hole Dia.
P
Cutter Thread
C
Cutter Number
100°
A
78°
A
82°
A
110°
A
115°
A
ZT330
7/16”
5/64”
1/4-28
ZT450-26
ZT450-24
ZT450-25
ZT450-27
ZT450-45
1/2”
ZT450-30
ZT450-28
ZT450-29
ZT450-31
ZT450-46
1/8”
ZT450-42
ZT450-40
ZT450-41
ZT450-43
ZT450-49
5/8”
ZT450-52
ZT450-50
ZT450-51
ZT450-53
ZT450-54
ZT331
3/4”
3/16”
3/8-24
ZT452-21
ZT452-19
ZT452-20
ZT452-22
ZT452-23
7/8”
ZT452-26
ZT452-24
ZT452-25
ZT452-27
ZT452-33
1”
ZT452-36
ZT452-34
ZT452-35
ZT452-37
ZT452-38
1-1/8”
ZT452-41
ZT452-39
ZT452-40
ZT452-42
ZT452-43
1-1/4”
ZT452-46
ZT452-44
ZT452-45
ZT452-47
ZT452-48
1-3/8”
ZT452-51
ZT452-49
ZT452-50
ZT452-52
ZT452-53
Note: Maximum non-cutting (dead center) diameter is 1/32”; larger than pilot hole. Use cutters with pilot hole a minimum of 1/32” smaller than desired pilot diameter.
 
Countersink Cutters
Used on Countersink Model
Cutter Dia.
D
Pilot Hole Dia.
P
Cutter Thread
C
Cutter Number
100°
A
78°
A
82°
A
110°
A
115°
A
ZT330
7/16”
When ordering these integral pilot cutters, specify dash number and pilot diameter D1 required.
1/4-28
ZT454-26
ZT454-24
ZT454-25
ZT454-27
ZT454-45
1/2”
ZT454-30
ZT454-28
ZT454-29
ZT454-31
ZT454-46
5/8”
ZT454-49
ZT454-47
ZT454-48
ZT454-50
ZT454-51
ZT331
3/4”
3/8-24
ZT456-21
ZT456-19
ZT456-20
ZT456-22
ZT456-23
7/8”
ZT456-26
ZT456-24
ZT456-25
ZT456-27
ZT456-33
1”
ZT456-36
ZT456-34
ZT456-35
ZT456-37
ZT456-38
1-1/8”
ZT456-41
ZT456-39
ZT456-40
ZT456-42
ZT456-43
1-1/4”
ZT456-46
ZT456-44
ZT456-45
ZT456-47
ZT456-48
1-3/8”
ZT456-51
ZT456-49
ZT456-50
ZT456-52
ZT456-53