92
MICROCHOICE
HANDPIECES
C
3.6.4 All Jacobs Chuck Attachments
NOTE: The associated catalog numbers
are: 5020-030, 5020-031, 5020-041, 5020-042.
1. Connect any Jacobs Chuck attachment to
the handpiece (See “3.6.1 Connecting/
Removing Attachments” on page 88).
2. Insert an accessory into the chuck and
secure it with the appropriate key
(999-052 for 1/4” chucks and 999-053
for 5/32”).
Specifications - Operating Speeds:
Jacobs Chuck: 1,000 rpm, forward or reverse
High Torque
Jacobs Chuck:
275 rpm, forward or reverse
Speed
Settings:
10 to 100% in 10% increments
NOTE: The High Torque Jacobs Chuck
has a 3.5:1 gear ratio reduction.