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TORK CRAFT Taper Adapter Mt3 - Jt4

TORK CRAFT Taper Adapter Mt3 - Jt4
TORK CRAFT Taper Adapter Mt3 - Jt4
R 136.00
Ex VAT: R 118.26
Quantity Unit Price You Save
5 or more R 132.96 2.24 %
10 or more R 128.99 5.16 %
20 or more R 126.01 7.34 %
  • Stock: 288
  • MPN: CMJT4-2
  • Weight: 0.40kg
  • Dimensions: 150.00mm x 20.00mm x 20.00mm
  • SKU: CMJT4-2
  • UPC: 6009515888497
For 30 or more items, click to quote
TAPER ADAPTER MT3 - JT4

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Features

  • Conversion: MT3 male shank → JT4 male taper (for JT4-bore chucks).
  • Precision-ground tapers for low run-out and reliable grip.
  • Hardened steel construction for durability in workshop use.
  • Smooth finish for clean seating and easy release.
  • Industry-standard geometry compatible with common machines and arbors.

Benefits

  • Versatility: mount JT4 chucks on MT3 machines without replacing arbors.
  • Accuracy: concentric fit improves hole quality and tool life.
  • Quick setup: press-fit assembly—no special tools needed.

 

Download the Specification sheet:
View the Specification sheet:

Extra Information

  • Thoroughly clean and degrease both tapers before assembly.
  • Seat the chuck with a firm hand press; avoid hammering on the chuck body.
  • Remove using the machine’s eject feature or correct taper drift/wedge.

Pro Tip

  • Mark the adapter and chuck with a reference line; reassemble to the same orientation to preserve best concentricity.
  • If insertion feels rough, lightly stone any raised burrs on the tapers—never sand or file the seating surfaces.

Specifications

Description Spec
BrandTork Craft
Model / Cat No.CMJT4-2
Product TypeTaper adapter
Input Taper (Machine Side)MT3 (Morse Taper #3), male
Output Taper (Chuck Side)JT4 (Jacobs Taper #4), male
MaterialHardened, precision-ground steel
FinishGround, smooth seating surfaces
Typical UsesFitting JT4 drill chucks to MT3 drill presses, lathe tailstocks, mills (drill mode)

Safety

  • Disconnect power before installing/removing chucks or adapters.
  • Ensure tapers are fully seated; avoid side-loading small drills.
  • Use rotary drilling only—do not use hammer/impact with taper-mounted chucks.
  • Wear eye protection and secure the workpiece properly.
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