Lathe Chuck Stops
 Fixed Lathe Chuck Stop Shown Installed |  Fixed |  Adjustable |
 Adjustable With Hardened Steel Parallels |
Consistently position workpieces in a three-jaw lathe chuck. These stops enable short workpieces to extend beyond the chuck's jaws, providing additional clearance. A magnetic back makes them easy to mount and remove from your chuck face.
Fixed chuck stops are a simple, consistent way to position your piece.
Adjustable chuck stops can be used with parallels or your own custom supports to position workpieces at the exact depth you need. Those that include hardened steel parallels come ready to set at various depths.
| No. of Pieces | Thicknesses Included | For Max. Chuck Jaw Thick. | Parallel Tolerance | Mount Type | No. of Mounting Magnets | Includes | Material | Each | |
Fixed | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3 | 15mm, 20mm, 25mm | 2 1/8" | -0.0004" to 0.0004" | Magnetic Back | 3 | __ | Aluminum | 0000000 | 0000000 |
| 5 | 15mm, 20mm, 25mm, 30mm, 35mm | 2 1/8" | -0.0004" to 0.0004" | Magnetic Back | 3 | __ | Aluminum | 00000000 | 000000 |
Adjustable | |||||||||
| 6 | 7/16" | __ | -0.0002" to 0.0002" | Magnetic Back | 3 | Five plastic centering rings (1 3/8" to 4" diameter) | Metal | 00000000 | 00000 |
| 17 | 7/16" | __ | -0.0002" to 0.0002" | Magnetic Back | 3 | Six plastic centering rings (1 3/8" to 4" diameter), Ten sets of hardened steel parallels (1/2" to 1 5/18" height) in a plastic case | Metal | 00000000 | 000000 |
Three-Jaw Lathe Chucks
Mount to a lathe's spindle to hold round workpieces. Also known as scroll chucks, these are self centering—all three jaws move in unison, centering the workpiece as they close. Use the included lathe chuck wrench to open and close the jaws.
Chuck with solid jaws comes with one set of outside jaws and one set of inside jaws.
Chucks with reversible jaws come with one set of jaws that can be installed for either an inside or outside grip.
A mounting plate (sold separately) is required to mount the chuck to a lathe. Select a mounting plate that matches the diameter of the lathe chuck and your lathe’s spindle type and spindle OD.
Lathe Chucks | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Workpiece | Replacement Reversible Jaw Set | |||||||||||
| Dia. | OD | ID | Center Through-Hole Dia. | TIR (Total Indicated Runout) Accuracy | Overall Lg. | Max. Speed, rpm | Material | Weight, lbs. | Each | Each | ||
| 6" | 0.31"-5.51" | 2.17"-5.91" | 1.78" | 0.0005" | 2.76" | 4,600 | Steel | 23 | 0000000 | 000000000 | 0000000 | 0000000 |
| 8" | 0.39"-7.87" | 2.17"-7.09" | 2.37" | 0.0005" | 3.15" | 4,000 | Steel | 37 | 0000000 | 00000000 | 0000000 | 000000 |
For Spindle | For Spindle Nose | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Type | OD | Size | Thread Size | Type | Dia. | Lg. | Center Through-Hole Dia. | Material | Each | |
For 5" Lathe Chuck Dia. | ||||||||||
| A1, A2 | 2 1/8" | 3 | __ | A-3 | 3.725" | 0.765" | 1.28" | Steel | 0000000 | 0000000 |
| A1, A2 | 4 1/4" | 4 | __ | A-4 | 2 1/2" | 0.437" | 1.28" | Steel | 0000000 | 000000 |
| D1 Camlock | 3 5/8" | 3 | __ | D1-3 | 2 1/8" | 0.437" | 1.28" | Steel | 0000000 | 000000 |
| D1 Camlock | 4 1/4" | 4 | __ | D1-4 | 2 1/2" | 0.437" | 1.28" | Steel | 0000000 | 000000 |
| Hardinge | 3.126" | __ | __ | 4-Degree | 2.316" | 1.472" | 1.32" | Steel | 0000000 | 000000 |
| Threaded | 5.11" | __ | 2 3/16"-10 | __ | 2 3/16" | 1.38" | 2.19" | Steel | 0000000 | 000000 |
For 6" Lathe Chuck Dia. | ||||||||||
| A1, A2 | 5 1/4" | 5 | __ | A-5 | 3.251" | 0.563" | 1.8" | Steel | 0000000 | 000000 |
| A1, A2 | 6 1/2" | 6 | __ | A-6 | 4.188" | 5/8" | 1.8" | Steel | 0000000 | 000000 |
| A1, A2 | 8 1/4" | 8 | __ | A-8 | 5.501" | 0.688" | 1.8" | Steel | 0000000 | 00000000 |
| D1 Camlock | 4 1/4" | 4 | __ | D1-4 | 2 1/2" | 0.437" | 1.8" | Steel | 0000000 | 000000 |
| D1 Camlock | 7 1/8" | 6 | __ | D1-6 | 4.188" | 5/8" | 1.8" | Steel | 0000000 | 000000 |
| Hardinge | 3.126" | __ | __ | 4-Degree | 2.316" | 1.472" | 1.32" | Steel | 0000000 | 000000 |
| Threaded | 6 1/2" | __ | 2 3/16"-10 | __ | 2 3/16" | 1.63" | 2.19" | Steel | 0000000 | 000000 |
For 8" Lathe Chuck Dia. | ||||||||||
| A1, A2 | 5 1/4" | 5 | __ | A-5 | 3.251" | 0.563" | 2.39" | Steel | 0000000 | 000000 |
| A1, A2 | 6 1/2" | 6 | __ | A-6 | 4.188" | 5/8" | 2.39" | Steel | 0000000 | 000000 |
| A1, A2 | 8 1/4" | 8 | __ | A-8 | 5.501" | 0.688" | 2.39" | Steel | 0000000 | 000000 |
| D1 Camlock | 4 1/4" | 4 | __ | D1-4 | 2 1/2" | 0.437" | 2.4" | Steel | 0000000 | 000000 |
| D1 Camlock | 7 1/8" | 6 | __ | D1-6 | 4.188" | 5/8" | 2.39" | Steel | 0000000 | 000000 |
Economy Lathe Chucks
Choose these lathe chucks when high precision isn’t critical. Made of cast iron, they don't match up to the same tight tolerances as forged steel lathe chucks. This means they are only rated to half the maximum speed, so they may wobble at high speeds. Also known as scroll chucks, they are self-centering—all three jaws move together, centering the workpiece as they close. Use the included lathe chuck wrench to open and close the jaws. You’ll need a mounting plate (not included) to connect these chucks to your lathe.
Fixed jaw lathe chucks come with a set of inside and outside jaws.
Reversible jaw lathe chucks have one set of jaws that provide either an inside or outside grip.
High-pressure grease (sold separately) improves grip and prolongs the life of your lathe chuck.
Lathe Chucks | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Workpiece | Replacement Inside Jaw Set | Replacement Outside Jaw Set | ||||||||||||
| Dia. | OD | ID | Center Through-Hole Dia. | TIR (Total Indicated Runout) Accuracy | Max. Speed, rpm | Number of Jaws | Material | Includes | Each | Each | Each | |||
| 3" | 0.08"-0.87" | 0.98"-2.76" | 0.63" | 0.0002" | 4,000 | 3 | Cast Iron | One Set of Solid Inside Jaws, One Set of Solid Outside Jaws, Self-Ejecting Lathe Chuck Wrench | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 |
| 4" | 0.08"-1.18" | 1.18"-3.54" | 0.86" | 0.0002" | 3,500 | 3 | Cast Iron | One Set of Solid Inside Jaws, One Set of Solid Outside Jaws, Self-Ejecting Lathe Chuck Wrench | 0000000 | 000000 | 0000000 | 000000 | 0000000 | 000000 |
| 5" | 0.1"-1.57" | 1.5"-4.92" | 1.18" | 0.0002" | 3,000 | 3 | Cast Iron | One Set of Solid Inside Jaws, One Set of Solid Outside Jaws, Self-Ejecting Lathe Chuck Wrench | 0000000 | 000000 | 0000000 | 000000 | 0000000 | 000000 |
Lathe Chucks | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Workpiece | Replacement Reversible Jaw Set | |||||||||||
| Dia. | OD | ID | Center Through-Hole Dia. | TIR (Total Indicated Runout) Accuracy | Max. Speed, rpm | Number of Jaws | Material | Includes | Each | Each | ||
| 6" | 0.12"-5.71" | 1.97"-6.3" | 1.77" | 0.0002" | 2,500 | 3 | Cast Iron | One Set of Reversible Jaws, Self-Ejecting Lathe Chuck Wrench | 0000000 | 0000000 | 0000000 | 0000000 |
Container | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| NLGI Viscosity Grade | Base Oil | Additive | Size | Type | Temp. Range, °F | Melting Temp., °F | Weld Load, kgf | Color | Each | |
DuPont Molykote G-4700 Extreme Pressure Synthetic—Lithium Thickener | ||||||||||
| 2 | Synthetic | Moly | 13.7 | Grease Gun Cartridge | -40° to 350° | 545° | 375 | Black | 0000000 | 000000 |
Lathe Spindle Stops
Position workpieces in the same spot every time to quicken setup, improve repeatability, and cut down on scrap. These stops create a repeatable position within your lathe spindle for clamping parts loaded through a chuck or collet. They fit a range of spindle bore diameters—the jaws expand outward for a secure, self-centering fit. To lock these stops in place, expand them with just a few turns of the T-handle wrench. They can be used on both CNC and manual lathes.
| For Spindle Dia. | Overall Lg. | Includes | Material | Each | |
| 1 5/16"-1 11/16" | 31"-34 1/2" | Collet Stop Adapter, Tube Stop Adapter, Long Extension Bar, Short Extension Bar, T-Handle Socket Wrench | Black-Oxide Alloy Steel | 00000000 | 0000000 |
| 1 3/4"-2 7/16" | 37 1/4"-43 3/4" | Collet Stop Adapter, Tube Stop Adapter, Long Extension Bar, Short Extension Bar, T-Handle Socket Wrench | Black-Oxide Alloy Steel | 00000000 | 000000 |
| 2 1/2"-3 1/2" | 40"-46 1/2" | Collet Stop Adapter, Tube Stop Adapter, Long Extension Bar, Short Extension Bar, T-Handle Socket Wrench | Black-Oxide Alloy Steel | 00000000 | 000000 |