Malco Vent Saw - Manual

LARGE DIAMETER
Standard Vent Saw
DESIGNED FOR CUTTING ALL TYPES
OF WOOD AND OTHER NONFERROUS
MATERIALS, INCLUDING plywood,
composition board and siding.
ALWAYS USE PROTECTIVE EYEWEAR.
IDEAL FOR VENTING APPLICATIONS: Furnaces,
Water Heaters, Kitchen and Bathroom Fans, Attic
Vents, Cloths Dryers. Also used for installing fresh
air intakes, water and sewer pipes, electrical boxes,
lighting fixtures.
WEBBED MANDREL
FOR EASY
PLUG REMOVAL
DUST
CLEARANCE
SLOT
2" DEPTH OF CUT
EXTRA LONG
7/16" PILOT
DRILL BIT
PROTECTIVE
BLACK OXIDE
FINISH
HIGH
GRADE
ALUMINUM
ALLOY
CAST
ARBOR/
MANDREL
BLADE
SCREWS
FOR EASY
REPLACEMENT
SL11662B
SIZES:
Large Diameter Standard Vent Saws
Catalog Saw Depth Ctn. Wt.
Number Diameter of Cut in Lbs.
Inches Inches
HSW68 4-1/4 Dia. 2" 1.5
HSW97 6-1/4 Dia. 2" 2.0
REPLACEMENT BLADES
RBW68 4-1/4 Dia. 2" 0.5
RBW97 6-1/4 Dia. 2" 0.9
REPLACEMENT DRILL & EXTENSION
HSRD Replacement Drill 0.3
HSX 13" Ext. -All Vent saws .75
MALCO PRODUCTS INC.
14080 HWY 55 NW | PO Box 400
Annandale, MN 55302 | www.malcotools.com
OPERATING TIPS
PILOT DRILL IS PRE-INSTALLED IN VENT SAW. Drill bit point length
extending beyond saw teeth is preset to accommodate hole
cuts up to 2" deep.
No further adjustment is necessary. Hold saw
perpendicular to work when drilling pilot so that teeth engage
evenly to assure accurate, efficient hole cutting.
Keep a firm
grip on drill and apply only moderate feed pressure while drilling
pilot to maintain operator control when saw teeth engage material.
NOTE: Extra long pilot drill easily bores through nonferrous
materials up to 4" thick. For some hole cutting applications,
the extra pilot drill length may help locate the hole center
from the other side of work in order to finish hole cuts up to
a maximum 4" depth.
RECOMMENDED CUTTING SPEEDS WILL RANGE DEPENDING ON
MATERIAL BEING CUT. Refer to drill manufacturer's use and care
manual for recommended operating instructions and proper
drill size. Generally, lower speeds should be used for hard,
dense materials while higher speeds are more efficient when
cutting in softer, less dense or thinner materials. For optimum
performance and maximum blade life, operate Hole Saw at
slowest speed and lowest feed pressure consistent with good
results. Saw must be held perpendicular to the surface being
cut. Cutting at an angle will result in blade damage.
REPLACEMENT BLADES: Blades are easily replaced by remov-
ing the 4 screws and lock nuts that hold blade to aluminum
arbor. New replacement blades will come with a new set
of screws and lock nuts. Place new blade over aluminum
arbor and line up the holes in arbor with the holes in blades.
Tighten screws securely using a 1/8" hex key wrench and 3/8"
open or closed end wrench.