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TIR (Total Indicated Runout) Accuracy TIR (Total IndicatedRunout) Accuracy |
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Taper per Inch Taper per Inch |
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Machine-Your-Own Inside-Grip 5C Collets
The head on these collets acts like a mandrel to support the inside of a hollow workpiece. An expanding screw widens the head to firmly grip the workpiece. It can be machined to fit the exact ID of your part. All have external threads.
| Head Dia. | Head Thick. | Min. Machined Dia. | Body Dia. | Overall Lg. | External Thread Size | TIR (Total Indicated Runout) Accuracy | Material | Each | |
| 1/2" | 1" | 0.25" | 1 1/4" | 4 1/2" | 1.234"-20 | 0.0005" | Steel | 0000000 | 000000 |
| 1" | 1" | 0.437" | 1 1/4" | 4 1/2" | 1.234"-20 | 0.0005" | Steel | 0000000 | 00000 |
| 1" | 2" | 0.437" | 1 1/4" | 5 1/2" | 1.234"-20 | 0.0005" | Steel | 0000000 | 000000 |
| 1 1/2" | 1" | 0.75" | 1 1/4" | 4 1/2" | 1.234"-20 | 0.0005" | Steel | 0000000 | 00000 |
| 1 1/2" | 1 1/2" | 0.75" | 1 1/4" | 5" | 1.234"-20 | 0.0005" | Steel | 0000000 | 00000 |
| 2" | 1" | 0.75" | 1 1/4" | 4 1/2" | 1.234"-20 | 0.0005" | Steel | 0000000 | 00000 |
| 2" | 1 1/2" | 0.75" | 1 1/4" | 5" | 1.234"-20 | 0.0005" | Steel | 0000000 | 000000 |
| 2 1/2" | 2 1/2" | 0.75" | 1 1/4" | 6" | 1.234"-20 | 0.0005" | Steel | 0000000 | 000000 |
Expanding-End Lathe Mandrels
An expanding screw widens the end of the mandrel for a tight hold on the inside of a workpiece. These mandrels are machinable to fit the exact ID of your part. Mandrels are also known as arbors.
| OD | Overall Lg. | Shank Dia. | End Expansion | Material | Each | |
| 1/4" | 3" | 1/4" | 0.002" | Steel | 0000000 | 000000 |
| 3/8" | 3" | 3/8" | 0.002" | Steel | 0000000 | 00000 |
| 1/2" | 3" | 1/2" | 0.002" | Steel | 0000000 | 00000 |
| 5/8" | 3" | 5/8" | 0.002" | Steel | 0000000 | 00000 |
| 3/4" | 4" | 3/4" | 0.002" | Steel | 0000000 | 00000 |
| 7/8" | 4" | 7/8" | 0.002" | Steel | 0000000 | 00000 |
| 1" | 4" | 1" | 0.002" | Steel | 0000000 | 00000 |
| 1 1/4" | 4" | 1" | 0.002" | Steel | 0000000 | 00000 |
| 1 1/2" | 4" | 1" | 0.002" | Steel | 0000000 | 00000 |
| 1 3/4" | 4" | 1" | 0.002" | Steel | 0000000 | 00000 |
Expanding-End Lathe Mandrel Sets
An expanding screw widens the end of the mandrel for a tight hold on the inside of a workpiece. These mandrels are machinable to fit the exact ID of your part. Mandrels are also known as arbors.
| Number of Pieces | Includes | End Expansion | Material | Set | |
| 8 | Four Hex Keys One 1 1/4" OD × 1" Shank Dia × 4" Lg. Expanding-End Mandrel One 1" OD × 1" Shank Dia × 4" Lg. Expanding-End Mandrel One 1/2" OD × 1/2" Shank Dia × 3" Lg. Expanding-End Mandrel One 1/4" OD × 1/4" Shank Dia × 3" Lg. Expanding-End Mandrel One 3/4" OD × 3/4" Shank Dia × 4" Lg. Expanding-End Mandrel One 3/8" OD × 3/8" Shank Dia × 3" Lg. Expanding-End Mandrel One 5/8" OD × 5/8" Shank Dia × 3" Lg. Expanding-End Mandrel One 7/8" OD × 7/8" Shank Dia × 4" Lg. Expanding-End Mandrel Stand | 0.002" | Steel | 0000000 | 0000000 |
Solid Lathe Mandrels
Use an arbor press to secure the narrow end of one of these tapered mandrels into the hole of a workpiece. The wide end has a flat for use with a lathe driver when turning between centers. Mandrels are also known as arbors.
| OD | Overall Lg. | Taper per Inch | Tapered End Tolerance | Material | Each | |
| 1/8" | 2 1/2" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 000000 |
| 3/16" | 3" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 1/4" | 3 3/4" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 5/16" | 4" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 3/8" | 4 1/4" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 7/16" | 4 1/2" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 1/2" | 5" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 9/16" | 5 1/4" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 5/8" | 5 1/2" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 3/4" | 6" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 7/8" | 6 1/2" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
| 1" | 7" | 0.0005" | -0.0005" to 0" | Steel | 0000000 | 00000 |
Wide-Diameter Range Lathe Mandrels
The sleeve on these mandrels expands to hold a range of IDs for better versatility than solid and expanding-end mandrels. They can hold the workpiece at any position along the sleeve. To use, insert the sleeve into the workpiece before inserting the small end of the tapered body into the sleeve and pushing until it's tight. Mandrels are also known as arbors.
| OD | Overall Lg. | Sleeve Lg. | Sleeve Accuracy | Material | Each | |
| 1/2"-9/16" | 5" | 2 1/2" | 0.001" TIR | Steel | 0000000 | 000000 |
| 9/16"-21/32" | 6" | 2 3/4" | 0.001" TIR | Steel | 0000000 | 00000 |
| 21/32"-3/4" | 7" | 2 3/4" | 0.001" TIR | Steel | 0000000 | 00000 |
| 3/4"-7/8" | 7" | 3 1/4" | 0.001" TIR | Steel | 0000000 | 00000 |
| 7/8"-1" | 7" | 3 1/2" | 0.001" TIR | Steel | 0000000 | 00000 |
| 1"-1 1/4" | 9" | 4" | 0.001" TIR | Steel | 0000000 | 000000 |
| 1 1/4"-1 1/2" | 9" | 4" | 0.001" TIR | Steel | 0000000 | 000000 |
| 1 1/2"-2" | 11 1/2" | 5" | 0.001" TIR | Steel | 0000000 | 000000 |
| 2"-2 3/4" | 14" | 6" | 0.001" TIR | Steel | 0000000 | 000000 |
| 2 3/4"-3 3/4" | 17" | 7" | 0.001" TIR | Steel | 0000000 | 000000 |
Live Centers for Continuous Use
A hardened body and point provide the extra strength and wear resistance necessary for continuous use on manual or CNC lathes. Use live centers in the tailstock to support the end of a workpiece. With bearings to support their free-turning point, they produce minimal friction between the center and workpiece. For increased tool life, the bearings are lubricated and sealed to protect against fluid and chips.
| Morse Taper Number | Max. Workpiece Capacity, lbs. | Point Dia. | Head Dia. | Point Lg. | Shank Lg. | Overall Lg. | Morse Taper Dia. | Max. Speed, rpm | Point Angle | TIR (Total Indicated Runout) Accuracy | Material | Each | |
| 2 | 725 | 7/8" | 1 3/4" | 1 1/64" | 2 13/16" | 5 19/64" | 0.7" | 6,000 | 60° | 0.00005" | Hardened Steel | 0000000 | 0000000 |
| 3 | 970 | 1" | 2 11/32" | 1 15/64" | 3 7/16" | 6 13/32" | 0.938" | 5,000 | 60° | 0.00005" | Hardened Steel | 0000000 | 000000 |
| 4 | 1,720 | 1 1/4" | 2 11/16" | 1 31/64" | 4 15/32" | 7 57/64" | 1.231" | 4,500 | 60° | 0.00005" | Hardened Steel | 0000000 | 000000 |
| 5 | 3,260 | 1 1/2" | 3 29/64" | 1 27/32" | 5 35/64" | 10 13/64" | 1.748" | 3,500 | 60° | 0.00005" | Hardened Steel | 0000000 | 000000 |
Live Centers for Intermittent Use
These light duty centers are for intermittent use on manual lathes. Use live centers in the tailstock to support the end of a workpiece. With bearings to support their free-turning point, they produce minimal friction between the center and workpiece. For increased tool life, the bearings are lubricated and sealed to protect against fluid and chips.
| Morse Taper Number | Max. Workpiece Capacity, lbs. | Point Dia. | Head Dia. | Point Lg. | Shank Lg. | Overall Lg. | Morse Taper Dia. | Max. Speed, rpm | Point Angle | TIR (Total Indicated Runout) Accuracy | Material | Each | |
| 1 | 220 | 0.59" | 1 1/2" | 45/64" | 2 3/32" | 4 1/16" | 0.475" | 5,000 | 60° | 0.0003" | Steel | 0000000 | 000000 |
| 2 | 460 | 0.7" | 1 9/16" | 7/8" | 2 33/64" | 4 47/64" | 0.7" | 5,000 | 60° | 0.0003" | Steel | 0000000 | 000000 |
| 3 | 925 | 0.98" | 2 13/64" | 1 1/8" | 3 3/16" | 6 9/64" | 0.938" | 4,000 | 60° | 0.0003" | Steel | 0000000 | 000000 |
| 4 | 1,850 | 1.1" | 2 33/64" | 1 15/64" | 4 1/32" | 7 15/64" | 1.231" | 3,000 | 60° | 0.0003" | Steel | 0000000 | 000000 |
| 5 | 4,400 | 1.61" | 3 11/32" | 1 49/64" | 5 3/32" | 9 21/64" | 1.748" | 2,500 | 60° | 0.0003" | Steel | 0000000 | 000000 |
Pipe and Tubing Live Centers
Also known as bull-nose centers, these have a wide head to hold pipe and large-diameter tubing. Use live centers in the tailstock to support the end of a workpiece. With bearings to support their free-turning point, they produce minimal friction between the center and workpiece.
| Morse Taper Number | Max. Workpiece Capacity, lbs. | Point Dia. | Point Tip Dia. | Point Lg. | Shank Lg. | Overall Lg. | Morse Taper Dia. | Max. Speed, rpm | TIR (Total Indicated Runout) Accuracy | Material | Each | |
| 2 | 2,000 | 4" | 1" | 3 29/32" | 2 9/16" | 6 27/32" | 0.7" | 2,500 | 0.00015" | Hardened Steel | 0000000 | 0000000 |
| 3 | 3,800 | 4" | 1" | 3 29/32" | 3 3/16" | 7 15/32" | 0.938" | 2,500 | 0.00015" | Hardened Steel | 0000000 | 000000 |
| 4 | 4,800 | 4" | 1" | 3 29/32" | 4 1/16" | 8 11/32" | 1.231" | 2,500 | 0.00015" | Hardened Steel | 0000000 | 000000 |
| 5 | 4,800 | 4" | 1" | 3 29/32" | 5 3/16" | 9 15/32" | 1.748" | 2,500 | 0.00015" | Hardened Steel | 0000000 | 000000 |
Dead Centers
Dead centers are one solid piece. Use them in the headstock when machining between centers or in the tailstock to support the end of a workpiece when friction is not a concern.
Carbide-tipped hardened steel dead centers have better wear resistance than hardened steel dead centers.
| Morse Taper Number | Point Dia. | Point Lg. | Taper Lg. | Overall Lg. | Morse Taper Dia. | Point Angle | TIR (Total Indicated Runout) Accuracy | Each | |
Hardened Steel | |||||||||
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| 1 | 0.475" | 13/32" | 2 1/8" | 3 5/16" | 0.475" | 60° | 0.00005" | 000000 | 000000 |
| 2 | 0.7" | 39/64" | 2 9/16" | 4 3/16" | 0.7" | 60° | 0.00005" | 000000 | 000000 |
| 3 | 0.938" | 13/16" | 3 3/16" | 5 1/4" | 0.938" | 60° | 0.00005" | 000000 | 000000 |
| 4 | 1.231" | 1 1/16" | 4 1/16" | 6 3/4" | 1.231" | 60° | 0.00005" | 000000 | 000000 |
| 5 | 1.748" | 1 33/64" | 5 3/16" | 8 1/2" | 1.748" | 60° | 0.00005" | 000000 | 000000 |
Carbide-Tipped Hardened Steel | |||||||||
| 1 | 0.475" | 13/32" | 2 1/8" | 3 5/16" | 0.475" | 60° | 0.00005" | 00000000 | 00000 |
| 2 | 0.7" | 39/64" | 2 9/16" | 4 3/16" | 0.7" | 60° | 0.00005" | 00000000 | 000000 |
| 3 | 0.938" | 13/16" | 3 3/16" | 5 1/4" | 0.938" | 60° | 0.00005" | 00000000 | 000000 |
| 4 | 1.231" | 1 1/16" | 4 1/16" | 6 3/4" | 1.231" | 60° | 0.00005" | 00000000 | 000000 |
| 5 | 1.748" | 1 33/64" | 5 3/16" | 8 1/2" | 1.748" | 60° | 0.00005" | 00000000 | 000000 |