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High-Performance Carbide Insert Holders
for External Threading and Grooving
Pair these holders with a threading insert or a grooving insert to make cuts on the outside of a workpiece. A highly-rigid clamping design results in a smoother finish and superior tool life. They are compatible with top-notch style threading and grooving systems.
Use a right-hand external holder with a right-hand insert when the workpiece is rotating counterclockwise (toward the lathe operator).
Use a left-hand external holder with a left-hand insert when the workpiece is rotating clockwise (away from the lathe operator).
Holders
Right Hand
Left Hand
External Grooving
Right-Hand External Threading
Holders | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Shank | For Insert | Replacement Clamps | |||||||||
| Holder Code | Wd. | Ht. | O'all Lg. | Material | Code | Thick. | Clamp Screw Hex Key Size | Each | Each | ||
Right Hand | |||||||||||
| ASR-103B | 5/8" | 5/8" | 4 1/2" | Steel | G-3031R, G-3062R, G-3094R, G-3125R, T-3R | 0.195" | 5/32" | 0000000 | 000000 | 0000000 | 000000 |
| SR-123B | 3/4" | 3/4" | 4 1/2" | Steel | G-3031R, G-3062R, G-3094R, G-3125R, T-3R | 0.195" | 5/32" | 0000000 | 00000 | 0000000 | 0000 |
| SR-163D | 1" | 1" | 6" | Steel | G-3031R, G-3062R, G-3094R, G-3125R, T-3R | 0.195" | 5/32" | 0000000 | 00000 | 0000000 | 0000 |
Left Hand | |||||||||||
| ASL-103B | 5/8" | 5/8" | 4 1/2" | Steel | G-3031L, G-3062L, G-3094L, G-3125L, T-3L | 0.195" | 5/32" | 0000000 | 00000 | 0000000 | 00000 |
| SL-123B | 3/4" | 3/4" | 4 1/2" | Steel | G-3031L, G-3062L, G-3094L, G-3125L, T-3L | 0.195" | 5/32" | 0000000 | 00000 | 0000000 | 0000 |
| SL-163D | 1" | 1" | 6" | Steel | G-3031L, G-3062L, G-3094L, G-3125L, T-3L | 0.195" | 5/32" | 0000000 | 00000 | 0000000 | 0000 |
| Replacement Clamp Screw | 0000000 | Each | 00000 |
Threading Inserts
Right Hand
Left Hand
Right Hand, Top View
Left Hand, Top View
Right-Hand External Threading
| Insert Code | Thread Type | External Threads Per Inch | Thick. | Tip Radius | O'all Ht. | For Use On | Each | |
AC3 Carbide | ||||||||
|---|---|---|---|---|---|---|---|---|
Right Hand | ||||||||
| T-3R | UNC, UNS, UNF | 6 to 20 | 0.195" | 0.008" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 000000 |
Left Hand | ||||||||
| T-3L | UNC, UNS, UNF | 6 to 20 | 0.195" | 0.008" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
AC50 Carbide | ||||||||
Right Hand | ||||||||
| T-3R | UNC, UNS, UNF | 6 to 20 | 0.195" | 0.008" | 0.344" | Steel | 0000000 | 00000 |
Left Hand | ||||||||
| T-3L | UNC, UNS, UNF | 6 to 20 | 0.195" | 0.008" | 0.344" | Steel | 0000000 | 00000 |
Grooving Inserts
Right Hand
Left Hand
Right Hand, Top View
Left Hand, Top View
External Grooving
Groove | ||||||||
|---|---|---|---|---|---|---|---|---|
| Insert Code | Wd. | Dp. | Thick. | Tip Radius | O'all Ht. | For Use On | Each | |
AC3 Carbide | ||||||||
Right Hand | ||||||||
| G-3031R | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 000000 |
| G-3062R | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 00000 |
| G-3094R | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| G-3125R | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
Left Hand | ||||||||
| G-3031L | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 00000 |
| G-3062L | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 00000 |
| G-3094L | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| G-3125L | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
AC50 Carbide | ||||||||
Right Hand | ||||||||
| G-3031R | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Steel | 000000 | 00000 |
| G-3062R | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Steel | 000000 | 00000 |
| G-3094R | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 000000 | 00000 |
| G-3125R | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 0000000 | 00000 |
Left Hand | ||||||||
| G-3031L | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Steel | 000000 | 00000 |
| G-3062L | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Steel | 000000 | 00000 |
| G-3094L | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 0000000 | 00000 |
| G-3125L | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 0000000 | 00000 |
High-Performance Carbide Insert Holders
for Internal Threading and Grooving
Pair these holders with a threading insert or a grooving insert to make cuts on the inside of a hollow workpiece. A highly-rigid clamping design results in a smoother finish and superior tool life. They are compatible with top-notch style threading and grooving systems.
Use a right-hand internal holder with a left-hand insert when the workpiece is rotating counterclockwise (toward the lathe operator).
Use a left-hand internal holder with a right-hand insert when the workpiece is rotating clockwise (away from the lathe operator).
Holders
Right Hand
Left Hand
Internal Grooving
Right-Hand Internal Threading
Holders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Insert | Replacement Clamps | |||||||||||
| Holder Code | Shank Dia. | Min. Hole Dia. | Max. Hole Dp. | O'all Lg. | Material | Code | Thick. | Clamp Screw Hex Key Size | Each | Each | ||
Right Hand | ||||||||||||
| A16-ER3 | 1" | 1 3/8" | 4" | 12" | Steel | G-3031L, G-3062L, G-3094L, G-3125L, T-3L | 0.195" | 5/32" | 0000000 | 0000000 | 0000000 | 00000 |
| A24-ER3 | 1 1/2" | 2" | 6" | 14" | Steel | G-3031L, G-3062L, G-3094L, G-3125L, T-3L | 0.195" | 5/32" | 0000000 | 000000 | 0000000 | 0000 |
Left Hand | ||||||||||||
| A16-EL3 | 1" | 1 3/8" | 4" | 12" | Steel | G-3031R, G-3062R, G-3094R, G-3125R, T-3R | 0.195" | 5/32" | 0000000 | 000000 | 0000000 | 0000 |
| A24-EL3 | 1 1/2" | 2" | 6" | 14" | Steel | G-3031R, G-3062R, G-3094R, G-3125R, T-3R | 0.195" | 5/32" | 0000000 | 000000 | 0000000 | 0000 |
| Replacement Clamp Screw | 0000000 | Each | 00000 |
Threading Inserts
Right Hand
Left Hand
Right Hand, Top View
Left Hand, Top View
Right-Hand Internal Threading
| Insert Code | Thread Type | Internal Threads Per Inch | Thick. | Tip Radius | O'all Ht. | For Use On | Each | |
AC3 Carbide | ||||||||
|---|---|---|---|---|---|---|---|---|
Right Hand | ||||||||
| T-3R | UNC, UNS, UNF | 5 to 12 | 0.195" | 0.008" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 000000 |
Left Hand | ||||||||
| T-3L | UNC, UNS, UNF | 5 to 12 | 0.195" | 0.008" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
AC50 Carbide | ||||||||
Right Hand | ||||||||
| T-3R | UNC, UNS, UNF | 5 to 12 | 0.195" | 0.008" | 0.344" | Steel | 0000000 | 00000 |
Left Hand | ||||||||
| T-3L | UNC, UNS, UNF | 5 to 12 | 0.195" | 0.008" | 0.344" | Steel | 0000000 | 00000 |
Grooving Inserts
Right Hand
Left Hand
Right Hand, Top View
Left Hand, Top View
Internal Grooving
Groove | ||||||||
|---|---|---|---|---|---|---|---|---|
| Insert Code | Wd. | Dp. | Thick. | Tip Radius | O'all Ht. | For Use On | Each | |
AC3 Carbide | ||||||||
Right Hand | ||||||||
| G-3031R | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 000000 |
| G-3062R | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 00000 |
| G-3094R | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| G-3125R | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
Left Hand | ||||||||
| G-3031L | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 00000 |
| G-3062L | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 000000 | 00000 |
| G-3094L | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| G-3125L | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
AC50 Carbide | ||||||||
Right Hand | ||||||||
| G-3031R | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Steel | 000000 | 00000 |
| G-3062R | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Steel | 000000 | 00000 |
| G-3094R | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 000000 | 00000 |
| G-3125R | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 0000000 | 00000 |
Left Hand | ||||||||
| G-3031L | 0.031" | 0.05" | 0.195" | 0.005" | 0.344" | Steel | 000000 | 00000 |
| G-3062L | 0.062" | 0.12" | 0.195" | 0.010" | 0.344" | Steel | 000000 | 00000 |
| G-3094L | 0.094" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 0000000 | 00000 |
| G-3125L | 1/8" | 0.18" | 0.195" | 0.010" | 0.344" | Steel | 0000000 | 00000 |
Parts for High-Performance Carbide Insert
Holders for Threading and Grooving
Clamp
Clamp Screw
| For Holder Code | Reference No. | Each | |
Clamp | |||
|---|---|---|---|
| A16-EL3, A24-EL3, SR-123B, SR-163D | TF-72 | 0000000 | 00000 |
| A16-ER3, A24-ER3, SL-123B, SL-163D | TF-73 | 0000000 | 0000 |
| ASL-103B | TF-185 | 0000000 | 00000 |
| ASR-103B | TF-184 | 0000000 | 00000 |
Clamp Screw | |||
| A16-EL3, A16-ER3, A24-EL3, A24-ER3, ASL-103B, ASR-103B, SL-123B, SR-123B, SL-163D, SR-163D | S-412 | 0000000 | 0000 |