Harbor Freight Tools 3670 Drill User Manual


 
Page 8For technical questions, please call 1-800-444-3353.SKU 3670
SPECIFICATIONS
Electrical Input 120 V~ / 60 Hz / 3.1 A
Motor Speed 
Chuck Capacity 1/16” to 3/8”
Chuck Type Keyless
E194601
UNPACKING
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor

possible.
INSTRUCTIONS FOR PUTTING
INTO USE
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set up
or use of this product.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch of the tool
off and unplug the tool from its
electrical outlet before
assembling or making any
adjustments to the tool.
Note: For additional information regarding the
parts listed in the following pages, refer
to the Assembly Diagram near the end of
this manual.
Functions
Figure 1
Forward/
Reverse Switch
(30)

Dial (31)
Trigger
(32)

1. The Trigger can be locked in the ON
position for extended operation.
See Figure 1.
The Keyless Chuck allows the operator 2.
to install and remove drill bits without
using a key or tools.
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set up
or use of this product.
Tool Set Up
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Release the Trigger
(32) and disconnect from power
source before adjusting tool or
installing a drill bit.
To insert a drill bit, hold the rear ring 1.
of the Chuck (5) with one hand while
turning the front end clockwise with the
other hand to open the jaws.
Rev 10g