Precision Drill Rod Datasheet

Precision Drill Rod is made of a very high carbon steel, water or oil hardened, and the level of carbon used determines its hardness.

O1 Oil Hardening

Typical Analysis

Carbon 0.90Vanadium 0.20
Manganese 1.20Chromium 0.50
Silicon 0.30

The most widely used grade of drill rod. It is a general purpose tool steel, outstanding for its reliability in hardening, good wear resistance, and excellent toughness.

W1 Water Hardening

Typical Analysis

Carbon 0.95 to 1.10

Water hardening grade is intended to meet the needs of the machine shop for average work
wherever better grades of tool steel drill rod are not required.

A2 Air Hardening

Typical Analysis

Carbon 1.00Vanadium 0.25
Molybdenum 1.10Chromium 5.25
Manganese 0.60

A2 is recommended rather than O1 when increased wear resistance, safer hardening, and less distortion are required.

S7 Air Hardening Super Shock

Typical Analysis

Carbon 0.50Molybdenum 1.40
Silicon 0.25Chromium 3.25
Manganese 0.70

A new outstanding air-hardening drill rod – the toughest, strongest drill rod for so many jobs that require maximum strength and impact.

D2 High Carbon – High Chrome

Typical Analysis

Carbon 1.50Molybdenum 0.75
Chromium 12.00Vanadium 0.25 to 0.80

An air-hardening type steel, known for its maximum wear resistance qualities. It is ideal for use in tools, dies, etc., used in long production runs.

M2 Moly-Tungsten-High Speed

Typical Analysis

Carbon 0.83Chromium 4.15
Molybdenum 5.00Vanadium 1.90
Manganese 6.35

The most widely used type of high-speed steel and, in general, can be used for the same
applications as T-1 high speed. Its higher carbon content and balance analysis produce
properties applicable to all general-purpose high-speed uses.

Fine Standard Tolerances

(section)Max T.I.R.(length)
Round Drill Rod
3.000″ to 0.500″+/- .0010″.005″+1/8″, -.0
0.499″ thru 0.125″ dia.+/- .0005″.005″+1/8″, -.0
0.124″ and smaller+/- .0003″.005″+1/8″, -.0
*Closer tolerances than standard can be produced upon special request.

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