Quick-Change Boring and Turning Cartridge Holders

A pyramid-shaped shank makes these holders easier to switch in or out of your lathe than round-shank holders. They meet ISO 26623 for compatibility with quick-change systems. Quick-change systems are also known as Capto or PSC. Since these holders form a rigid connection with lathes, they’re often used for precision turning. Rather than removing and replacing an insert while your lathe is stopped, just swap out the cartridge (sold separately) and get right back to work. While one cartridge is in use, you can replace the insert on another, so a fresh cutting tool is always ready to go. Both holders and cartridges have a hole that passes coolant from your lathe onto the workpiece, minimizing heat. Pair the cartridges with carbide inserts.
Use right-hand cartridges when the workpiece is rotating counterclockwise, or toward you. Use left-hand cartridges when the workpiece rotates clockwise, or away from you.
Cutting edge angle is also known as lead angle, entering angle, or KAPR.


O'all | ||||||
|---|---|---|---|---|---|---|
| For Cartridge OD | Manufacturer Equivalent No. | Usable Lg., mm | Dia. | Lg., mm | Each | |
| 3/4" | Capto C4, PSC-40 | 55 | 40 | 100 | 0000000 | 0000000 |
| 3/4" | Capto C5, PSC-50 | 55 | 50 | 105 | 0000000 | 000000 |
| 1" | Capto C4, PSC-40 | 80 | 40 | 125 | 0000000 | 000000 |
| 1" | Capto C5, PSC-50 | 80 | 50 | 130 | 0000000 | 000000 |
| 1 1/4" | Capto C4, PSC-40 | 95 | 40 | 140 | 0000000 | 000000 |
| 1 1/4" | Capto C5, PSC-50 | 95 | 50 | 145 | 0000000 | 000000 |
| 1 1/4" | Capto C6, PSC-63 | 98 | 63 | 158 | 0000000 | 000000 |
| 1 1/2" | Capto C5, PSC-50 | 115 | 50 | 165 | 0000000 | 000000 |
| 1 1/2" | Capto C6, PSC-63 | 118 | 63 | 178 | 0000000 | 000000 |
| 2" | Capto C6, PSC-63 | 153 | 63 | 213 | 0000000 | 000000 |



For Insert | |||||||
|---|---|---|---|---|---|---|---|
| Cartridge OD | Min. Hole Dia. | O'all Lg. | Cutting Edge Angle | Inscribed Circle Dia. (IC) | Thick. | Each | |
Right Hand | |||||||
| 3/4" | 0.92" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 0000000 |
| 1" | 1.185" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.465" | 2 1/8" | 95° | 1/2" | 0.187" | 0000000 | 000000 |
| 1 1/2" | 1.73" | 2 1/2" | 95° | 1/2" | 0.187" | 0000000 | 000000 |
| 2" | 2.4" | 3 3/8" | 95° | 1/2" | 0.187" | 0000000 | 000000 |
Left Hand | |||||||
| 3/4" | 0.92" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1" | 1.185" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |






For Insert | |||||||
|---|---|---|---|---|---|---|---|
| Cartridge OD | Min. Hole Dia. | O'all Lg. | Cutting Edge Angle | Inscribed Circle Dia. (IC) | Thick. | Each | |
Right Hand | |||||||
| 3/4" | 1.05" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 0000000 |
| 1" | 1.31" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.5" | 2 1/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.7" | 2 1/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/2" | 1.96" | 2 1/2" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 2" | 2.5" | 3 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
Left Hand | |||||||
| 3/4" | 1.05" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1" | 1.31" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.7" | 2 1/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/2" | 1.96" | 2 1/2" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 2" | 2.5" | 3 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
Internal Grooving Lathe Tools for Retaining Rings

Create square-corner grooves for retaining rings on the inside of a workpiece. Tools have flats on the shank for quick alignment.

| Groove Wd., mm | Min. Hole Dia. | Max. Hole Dp. | Offset | Shank Dia. | Overall Lg. | Material | For Use On | Each | |
| 0.5 | 1/4" | 1/2" | 0.05" | 1/4" | 2 1/2" | Micrograin Carbide | Aluminum, Brass, Bronze, Cast Iron, Nickel, Stainless Steel, Steel | 00000000 | 000000 |
| 1.1 | 1/4" | 1/2" | 0.05" | 1/4" | 2 1/2" | Micrograin Carbide | Aluminum, Brass, Bronze, Cast Iron, Nickel, Stainless Steel, Steel | 00000000 | 00000 |
| 1.3 | 1/4" | 1/2" | 0.05" | 1/4" | 2 1/2" | Micrograin Carbide | Aluminum, Brass, Bronze, Cast Iron, Nickel, Stainless Steel, Steel | 00000000 | 00000 |
Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck with industry standard 1.5 mm × 60° serrations or wider 3 mm × 60° serrations.
Jaw nuts with M6, M8, M10, M12, M16, and M20 threads fit most chucks made by Kitagawa, LMC, Samchully, Seoam, Auto Strong, and other brands.
Jaw nuts with inch and M14 threads fit most chucks made by Matsumoto.
Thread | Base | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Lathe Chuck Dia. | For Slot Wd. | Size | Pitch, mm | Ht. | Lg. | Wd. | Overall Ht. | For Serration Size | Mounting Hole Ctr.-to-Ctr. | Material | Each | |
| 4" | 0.315" | M6 | 1 | 11/64" | 61/64" | 29/64" | 17/32" | 1.5 mm × 60° | 0.591" | Steel | 0000000 | 000000 |
| 5" | 0.392" | M8 | 1.25 | 7/32" | 1 11/64" | 35/64" | 39/64" | 1.5 mm × 60° | 0.713" | Steel | 0000000 | 00000 |
| 6" | 0.472" | M10 | 1.5 | 19/64" | 1 13/32" | 11/16" | 23/32" | 1.5 mm × 60° | 0.787" | Steel | 0000000 | 00000 |
| 8" | 0.551" | M12 | 1.75 | 11/32" | 1 27/32" | 13/16" | 13/16" | 1.5 mm × 60° | 0.984" | Steel | 0000000 | 00000 |
| 10" | 0.63" | M12 | 1.75 | 11/32" | 1 63/64" | 7/8" | 27/32" | 1.5 mm × 60° | 1.181" | Steel | 0000000 | 00000 |
| 12" | 0.705" | M14 | 2 | 17/32" | 2 3/16" | 1 1/8" | 1 11/64" | 1.5 mm × 60° | 1.26" | Steel | 0000000 | 00000 |
| 12" | 0.827" | M16 | 2 | 29/64" | 2 9/16" | 1 5/32" | 1 3/32" | 1.5 mm × 60° | 1.181" | Steel | 0000000 | 00000 |
| 15" | 0.866" | M20 | 2.5 | 21/32" | 3 5/32" | 1 5/16" | 1 51/64" | 1.5 mm × 60° | 1.693" | Steel | 0000000 | 00000 |
| 21", 24" | 0.982" | M20 | 2.5 | 11/16" | 3 59/64" | 1 7/16" | 2 1/16" | 3 mm × 60° | 2.36" | Steel | 0000000 | 00000 |
5C Collets

These collets tightly grip workpieces when installed into a 5C collet chuck or holder. They provide a stronger hold on small workpieces than a standard lathe chuck.
| Collet Size | TIR (Total Indicated Runout) Accuracy | Workpiece Dia. Tolerance | Body Dia. | Overall Lg. | Internal Thread Size | External Thread Size | Material | Each | |
Round | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 000000 |
| 4mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 5mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 6mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 7mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 0000000 | 00000 |
| 8mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 9mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 10mm | 0.0008" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 11mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 12mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 13mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 14mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 15mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 16mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 17mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 18mm | 0.0011" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 19mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 20mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 21mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 22mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 23mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 24mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 25mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
| 26mm | 0.0015" | -0.004" to 0" | 1 1/4" | 3.27" | 1.041"-24 | 1.238"-20 | Steel | 00000000 | 00000 |
Stationary Jaw Clamping Fixtures
Mount these fixtures to a milling machine, drill press, or other flat surface and use the jaws to grip workpieces. Their low-profile design maximizes tool clearance, which helps you machine efficiently. The jaws are precision ground to tight tolerances for repeatable centering that’s accurate within 0.02 mm. These fixtures are self-centering—they use scroll actuation, which means that all jaws move in unison to center the workpiece as they close.
Each fixture comes with reversible jaws, which you can install for either an inside or outside grip. Use the included wrench to open or close the jaws.
Fixtures with three jaws are best for gripping round workpieces. Fixtures with four jaws have more holding power than those with three jaws, so they’re often used on square or rectangular workpieces.

For Workpiece | Base | Mounting Slots | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | ID | Dia. | Ht. | Dia | Ht. | Center Through-Hole Dia. | Material | No. of | Wd. | Includes | Each | |
| 5/16"-6 5/16" (8-160 mm) | 1 7/8"- 5 29/32" (48-150 mm) | 6 11/16" (170 mm) | 1 9/16" (40 mm) | 8 21/32" (220 mm) | 11/16" (18 mm) | 1 25/32" (45 mm) | Steel | 4 | 1/2" (13 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 000000000 |
| 7/16"-7 7/8" (11-200 mm) | 2 7/16"- 7 1/2" (62-190 mm) | 8 1/4" (210 mm) | 1 25/32" (45 mm) | 10 5/8" (270 mm) | 25/32" (20 mm) | 2 3/8" (60 mm) | Steel | 4 | 1/2" (13 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 00000000 |
| 15/32"-9 27/32" (12-250 mm) | 2 27/32"- 9 7/16" (72-240 mm) | 10 1/32" (255 mm) | 2 3/32" (53 mm) | 12 13/32" (315 mm) | 25/32" (20 mm) | 3 5/32" (80 mm) | Steel | 4 | 5/8" (16 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 00000000 |
| 19/32"-11 13/16" (15-300 mm) | 3 3/8"- 11 13/32" (86-290 mm) | 12" (305 mm) | 2 9/32" (58 mm) | 14 9/16" (370 mm) | 7/8" (22 mm) | 4 1/8" (105 mm) | Steel | 4 | 11/16" (18 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 00000000 |

For Workpiece | Base | Mounting Slots | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | ID | Lg. | Wd. | Ht. | Lg. | Wd. | Ht. | Center Through-Hole Dia. | Material | No. of | Wd. | Includes | Each | |
| 5/32"-5 1/32" (4-128 mm) | 2 5/32"- 5 1/32" (55-128 mm) | 6 1/2" (165 mm) | 6 1/2" (165 mm) | 1 17/32" (39 mm) | 8 15/32" (215 mm) | 6 1/2" (165 mm) | 11/16" (18 mm) | 1 19/32" (40 mm) | Steel | 2 | 11/16" (18 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 000000000 |
| 3/16"-6 3/8" (5-162 mm) | 2 7/16"- 6 3/8" (62-162 mm) | 7 7/8" (200 mm) | 7 7/8" (200 mm) | 1 25/32" (45 mm) | 9 27/32" (250 mm) | 7 7/8" (200 mm) | 25/32" (20 mm) | 2 5/32" (55 mm) | Steel | 2 | 11/16" (18 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 00000000 |
| 1/4"-7 7/8" (6-200 mm) | 2 27/32"- 7 7/8" (72-200 mm) | 9 27/32" (250 mm) | 9 27/32" (250 mm) | 1 31/32" (50 mm) | 12 7/32" (310 mm) | 9 27/32" (250 mm) | 7/8" (22 mm) | 2 3/4" (70 mm) | Steel | 2 | 11/16" (18 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 00000000 |
| 13/32"-10 7/16" (10-265 mm) | 3 9/16"- 10 7/16" (90-265 mm) | 12 7/32" (310 mm) | 12 7/32" (310 mm) | 2 3/8" (60 mm) | 14 31/32" (380 mm) | 12 7/32" (310 mm) | 1" (25 mm) | 3 15/16" (100 mm) | Steel | 2 | 7/8" (22 mm) | One Set of Hardened Reversible Jaws, One Chuck Wrench | 0000000 | 00000000 |
Quick-Change Boring and Turning Cartridges




Limit downtime when you’re changing out cutting tools. Rather than removing and replacing an insert while your lathe is stopped, just swap out these cartridges and get right back to work. While one cartridge is in use, you can replace the insert in another, so a fresh cutting tool is always ready to go.
Pair these cartridges with a carbide insert and connect them to your lathe with either a quick-change cartridge holder or boring bar (each sold separately). Cartridge holders mount to quick-change lathe systems, also known as Capto, while boring bars mount with round shank toolholders. All components are coolant-through compatible. They have a hole that delivers coolant from your lathe onto the workpiece to minimize heat.
Back-boring cartridges pass through an existing hole to enlarge it from the back of the workpiece, rather than enlarging the hole as they enter. They are commonly used to make pipe fittings and hydraulic cylinders.
Use right-hand cartridges when the workpiece is rotating counterclockwise, or toward you. Use left-hand cartridges when the workpiece rotates clockwise, or away from you.
Cutting edge angle is also known as lead angle, entering angle, or KAPR.



For Insert | |||||||
|---|---|---|---|---|---|---|---|
| Cartridge OD | Min. Hole Dia. | O'all Lg. | Cutting Edge Angle | Inscribed Circle Dia. (IC) | Thick. | Each | |
Right Hand | |||||||
| 3/4" | 0.92" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 0000000 |
| 1" | 1.185" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.465" | 2 1/8" | 95° | 1/2" | 0.187" | 0000000 | 000000 |
| 1 1/2" | 1.73" | 2 1/2" | 95° | 1/2" | 0.187" | 0000000 | 000000 |
| 2" | 2.4" | 3 3/8" | 95° | 1/2" | 0.187" | 0000000 | 000000 |
Left Hand | |||||||
| 3/4" | 0.92" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1" | 1.185" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |






For Insert | |||||||
|---|---|---|---|---|---|---|---|
| Cartridge OD | Min. Hole Dia. | O'all Lg. | Cutting Edge Angle | Inscribed Circle Dia. (IC) | Thick. | Each | |
Right Hand | |||||||
| 3/4" | 1.05" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 0000000 |
| 1" | 1.31" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.5" | 2 1/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.7" | 2 1/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/2" | 1.96" | 2 1/2" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 2" | 2.5" | 3 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
Left Hand | |||||||
| 3/4" | 1.05" | 1 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1" | 1.31" | 1 5/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/4" | 1.7" | 2 1/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 1 1/2" | 1.96" | 2 1/2" | 95° | 3/8" | 0.156" | 0000000 | 000000 |
| 2" | 2.5" | 3 3/8" | 95° | 3/8" | 0.156" | 0000000 | 000000 |


O'all | ||||||
|---|---|---|---|---|---|---|
| For Cartridge OD | Manufacturer Equivalent No. | Usable Lg., mm | Dia. | Lg., mm | Each | |
| 3/4" | Capto C4, PSC-40 | 55 | 40 | 100 | 0000000 | 0000000 |
| 3/4" | Capto C5, PSC-50 | 55 | 50 | 105 | 0000000 | 000000 |
| 1" | Capto C4, PSC-40 | 80 | 40 | 125 | 0000000 | 000000 |
| 1" | Capto C5, PSC-50 | 80 | 50 | 130 | 0000000 | 000000 |
| 1 1/4" | Capto C4, PSC-40 | 95 | 40 | 140 | 0000000 | 000000 |
| 1 1/4" | Capto C5, PSC-50 | 95 | 50 | 145 | 0000000 | 000000 |
| 1 1/4" | Capto C6, PSC-63 | 98 | 63 | 158 | 0000000 | 000000 |
| 1 1/2" | Capto C5, PSC-50 | 115 | 50 | 165 | 0000000 | 000000 |
| 1 1/2" | Capto C6, PSC-63 | 118 | 63 | 178 | 0000000 | 000000 |
| 2" | Capto C6, PSC-63 | 153 | 63 | 213 | 0000000 | 000000 |

































