Jacobs Plain Bearing Keyed Drill Chuck, 1/2-20 Mount, K32 Key, 0.08 – 1/2 Range – 71-748-8

Mount

1/2″ – 20

Key

K32

Range

0.08 – 1/2″

Jacobs Plain Bearing Keyed Drill Chuck, 1/2″-20 Mount, K32 Key, 0.08 – 1/2″ Range

Features:

• The JACOBS plain Bearing Chucks are the world’s most widely used.
• Medium duty for use on all types of floor, bench or portable machinery.
• Jaws are specially treated and centerground to ensure extended life and high gripping power.
• All working components are hardened and ground.
• Tapered mount drill chucks have an internal Jacobs Taper (JT) that is press-fit onto a corresponding JT arbor (shank) or spindle.
• Keyed chucks are engineered to either loosen or tighten the hold on a tool by using a key. Keyed chucks offer the advantage of applying additional torque on the bit when slippage is a concern during heavy-duty applications.
• Plain bearings are designed with a 1-piece gearing and sleeve for reducing teeth breakage. They are used for medium duty operations with stationary drilling, turning, milling and woodworking machines.

Specifications:

Manufacturer Part #
JCM6287
33BA 1/2

Maximum Drill Chuck Capacity (mm)
12.70

Maximum Drill Chuck Capacity (Inch)
1/2

Maximum Drill Chuck Capacity (Decimal Inch)
0.5000

Minimum Drill Chuck Capacity (mm)
1.98

Minimum Drill Chuck Capacity (Inch)
5/64

Minimum Drill Chuck Capacity (Decimal Inch)
0.0781

Mount Type
Threaded Mount

Mounting Size
1/2-20

Key Style
Keyed

Bearing Type
Plain Bearing

Material
Steel

Closed Length (mm)
78.49

Closed Length (Decimal Inch)
3.0900

Open Length (mm)
61.72

Open Length (Decimal Inch)
2.4300

Sleeve Diameter (mm)
45.47

Sleeve Diameter (Decimal Inch)
1.7900

Key Number
K32

See all Jacobs Plain Bearing Keyed Drill Chucks