Page 10 - Diamond Products Catalog
P. 10
BIT RANGE CHART: MOHS SCALE OF HARDNESS
Soapston Rock Salt Amber Marble Dolomite Slate Sandstone Pegmatite Norite IMPREGNATED DIAMOND
SSUMXTM
TSD
PCD
PCD SURFACE SET
07UMXTM
ALPHA 02
09UMXTM
TSD
ALPHA 06ABR
ALPHA 07ABR
8
© Copyright 2014 Boart Longyear. All rights reserved.
SOFTER
1 1.5 2 2.5 3 3.5 4 4.5 5
Conditions are often encountered where formations change repeatedly within a very short interval of drilling. Under such circumstances, select a bit that cuts the hardest of the expected formations, and adjust drill rates as abrasive rock is encountered to protect the bit from excessive wear rates.
For additional details about bit selection as well as custom exploration bits, please contact your local sales representative.
SURFACE SET
