Introduction
Heavy-duty pneumatic screwdriver features pad-
dle switch for multiple positioning arrangements,
forward and reverse switch, pressure clutch and
quick-change collet that accepts 1⁄4" hex screw-
driver bits. It has a free speed of 9500 RPM and
a torque range of 1.67 to 5 ft/lbs.
A. Impact Screwdriver ..................................... 1
B. Hanger ........................................................ 1
C. 1⁄4" MNPT Air Fitting .................................... 1
D. Driver Bit ..................................................... 1
Operation
Attach the hanger into the two recesess on the
air inlet nut (optional). Insert your driver bit into
the collet. The retaining clip will hold it in place.
Choose left or right rotation with the directional
switch. Control the air pressure with the air pres-
sure dial. Have your inlet pressure set at no more
than 80 PSI.
MODEL H3274
1⁄4" Impact Screwdriver
INSTRUCTION SHEET
Figure 1. Model H3274.
Figure 2. Lubricating directly into air fitting.
If you need help with your new pneumatic tool,
call our Tech Support at: (570) 546-9663.
COPYRIGHT © MARCH, 2006 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#PC8030 PRINTED IN CHINA
INJURY HAZARD!
Always disconnect tool from
air to prevent unexpected
operation during service!
EXPLOSION HAZARD!
Never exceed 120 PSI!
EYE/EAR INJURY HAZARD!
Wear safety glasses and
hearing protection during
use of this tool!
Impact Screwdriver MUST have 3-4 drops of oil
directly dropped into the air fitting before each use
as shown in Figure 2.
