Super heavy-duty keyed drill chuck, 0.5 to 20mm capacity across 17 models on ten B and JT tapers. What makes it super heavy-duty is its larger, more rigid body—not a wider clamping range: at 13mm it measures 56mm across against 46-53mm on the heavy-duty series, and both stop at 20mm — the heavy-duty actually goes finer, down to 0.3mm. That larger body raises rigidity and absorbs the impact and vibration of a drill entering a forging, a cored casting or an interrupted surface. The body is through-hardened steel rather than powder-metal die casting, and the three jaws are chromium steel, vacuum heat treated. Every mount is a taper, never a threaded portable drill spindle. Capacities, mounting tapers and dimensions are in the chart below.
| Cart+ | SKU | Price | Quantity | Total | Clamping Range | Connection | D (mm) | L (mm) |
|---|---|---|---|---|---|---|---|---|
DC-KD-SH-B10-6 | $17 | $0 | 0.5-6 (1/64-1/4) | B10 | 32 | 50 | ||
DC-KD-SH-JT1-6 | $17 | $0 | 0.5-6 (1/64-1/4) | JT1 | 32 | 50 | ||
DC-KD-SH-B12-10 | $20 | $0 | 1.0-10 (1/32-3/8) | B12 | 42 | 67 | ||
DC-KD-SH-JT2-10 | $20 | $0 | 1.0-10 (1/32-3/8) | JT2 | 42 | 67 | ||
DC-KD-SH-B18-13 | $26 | $0 | 1.0-13 (1/32-1/2) | B18 | 56 | 87 | ||
DC-KD-SH-B16-13 | $26 | $0 | 1.0-13 (1/32-1/2) | B16 | 56 | 87 | ||
DC-KD-SH-JT33-13 | $26 | $0 | 1.0-13 (1/32-1/2) | JT33 | 56 | 87 | ||
DC-KD-SH-JT6-13 | $26 | $0 | 1.0-13 (1/32-1/2) | JT6 | 56 | 87 | ||
DC-KD-SH-B18-16-D56 | $27 | $0 | 3.0-16 (1/8-5/8) | B18 | 56 | 87 | ||
DC-KD-SH-B16-16-D56 | $27 | $0 | 3.0-16 (1/8-5/8) | B16 | 56 | 87 | ||
DC-KD-SH-JT33-16 | $27 | $0 | 3.0-16 (1/8-5/8) | JT33 | 56 | 87 | ||
DC-KD-SH-JT6-16 | $27 | $0 | 3.0-16 (1/8-5/8) | JT6 | 56 | 87 | ||
DC-KD-SH-B18-16-D59 | $30 | $0 | 1.0-16 (1/32-5/8) | B18 | 59 | 94 | ||
DC-KD-SH-B16-16-D59 | $30 | $0 | 1.0-16 (1/32-5/8) | B16 | 59 | 94 | ||
DC-KD-SH-JT3-16 | $30 | $0 | 1.0-16 (1/32-5/8) | JT3 | 59 | 94 | ||
DC-KD-SH-B22-20 | $43 | $0 | 5.0-20 (3/16-3/4) | B22 | 68 | 108 | ||
DC-KD-SH-JT3-20 | $43 | $0 | 5.0-20 (3/16-3/4) | JT3 | 68 | 108 |
Capacity 0.5-20mm (1/64 to 3/4 inch), six steps
Ten taper mounts: five B tapers and five Jacobs tapers
No threaded mounts, so not for a portable drill
Wider body than the heavy-duty at 13, 16 and 20mm capacity
Body 32 to 68mm diameter, 50 to 108mm long
Three jaws in chromium steel, vacuum heat treated
Through-hardened steel body, not powder-metal die casting
A larger body for forgings and interrupted cuts
For drill presses, lathes, CNC and woodworking machines
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