Masonry Magazine November 2004 Page. 28
Saw BLADES
Knowing as much as possible about stone, brick, block, ceramic or combinations of these masonry materials can be of enormous benefit to the cutting operator and the tool manufacturer.
Core Cracking
IF THE OPERATOR OBSERVES that the core is cracking (Figure 6), the blade specification being used may be too hard for the material being cut. The operator should not put excessive pressure on the blade by pushing, jamming or twisting the blade into the cut. All of these actions can put undue stress on the blade and can cause metal fatigue.
VERTICAL
CRACK
HORIZONTAL CRACK
Figure 6-Core cracking
applied to the cutting area. Another reason for segment loss may be that the blade specification is too hard for the material being cut, causing the blade to become dull. In this instance, an operator should recognize that the material being cut is different than originally believed and a blade with a softer bond might be better suited to the new material. Segment loss can also occur when the blade is subjected to sharp, sudden movements while in the cut or upon initiation of the cut. The operator should make slow and even contact between the blade and the material being cut.
PLANK-TIE
YOUR NAME IMPRINTED HERE
Scaffold
Plank
Protection
Manufactured
by ISI
180 Mill Street, Waynesboro, VA 22980
(540) 949-6839
www.plank-tie.com
CIRCLE 173 ON READER SERVICE CARD
CARBIDE-TIPPED HAND CARVING SET
HARD STONE HAND CARVING SET
$179
14 SOUME DE 15 ROUND
This set features carbide-tipped chisels, which will keep their edge and last many times longer than steel tools. Use them for hand carving in granite, hard marble, or anytime you're looking for improved performance in your stone carving tools.
Set includes the following carbide-tipped tools:
* 1/2" Hand Point
* 3/8" Hand Chisel
* 1/2" Hand Chisel w/teeth
* 3/4" Mallet Head Chisel
* 1-1/4" Mallet Head Chisel
* Tool Pouch for easy storage
* Your choice of 1-1/2 lb
Square Hammer (10" handle)
or 1-1/2 Ib Round Hammer
(6" handle)
MADE TO LAST SINCE 1890 IN BARRE, VERMONT USA
TROW AND HOLDEN COMPANY
FINE STONEWORKING TOOLS
45 South Main Street, Barre, Vermont 05641
800-451-4349 www.trowandholden.com
Please write or call for a free catalog
CIRCLE 167 ON READER SERVICE CARD
26
Masonry
November 2004
DIAMOND PROTRUSION
S = Side
Relief
www.masoncontractors.org