Keyed EDM Drill Chucks

Chucks and Precision

A chuck’s ability to hold an electrode with stability forms the basis of an EDM drilling apparatus. A chuck lacking precision only compounds defects in its electrode and guide, and does not wear down uniformly, reducing its lifespan. Chucks with keys allow for a much tighter grip than keyless chucks.

Industrial Keyed Drill Chucks

Part Number

Capacity

Jacobs Taper

S4-0JT

0.3mm-4.0mm (0.012″-0.157″) Jacobs Taper:

JT0


S6.5L-1JT

0.5mm-6.5mm (0.020″-0.256″) Jacobs Taper:

JT1

Part Number

Capacity

Thread

S4B 5/16-24

0.35mm-4.0mm (0.014″-0.157″)

5/16-24


S6.5LBA 3/8-24

0.5mm-6.5mm (0.020″-0.256″)

3/8-24


F6.5LBA 3/8-24

0.5mm-6.5mm (0.020″-0.256″)

3/8-24

Stainless Steel Keyed Drill Chucks

Part Number

Capacity

Jacobs Taper

SL4

0.3mm-4.0mm (0.012″-0.157″)

JT0


SL6.5EL

0.5mm-6.5mm (0.020″-0.256″)

JT1

Part Number

Capacity

Jacobs Taper

Thru-Hole Diameter

400 N040 G01 0

0.3mm-4.0mm (0.012″-0.157″)

5/16-24

5.5mm (.217″)


400 N074 G02 0

Capacity: 0.6mm-7.4mm (0.024″-0.291″)

5/8-24

7.5mm (.295″)

Chuck Adaptors

For our chucks with female jacobs tapers, we offer male and female chuck adaptors. Our adaptors have a male jacobs taper and provide a snug fit to maintain accuracy in drilling. Our chuck adaptors also have through-holes with clearance up to 6 mm. Our adaptors give you the flexibility to choose whichever chuck suits your electrodes, not your machine.

  • A female chuck adaptor.

    Female Chuck Adaptor

    All female chuck adaptors are designed to fit an externally threaded male machine head. Female adaptors come standard with a detachable jacobs taper. Available in stainless steel. Featuring a knurled grip.

  • A male chuck adaptor.

    Male Chuck Adaptor

    All male chuck adaptors are designed to fit an internally threaded female machine head. Male adaptors come standard with a detachable jacobs taper. Available in stainless steel. Featuring a knurled grip.