Structural Steel Drilling Product Catalog

DRILLING | Structural Steel Solutions | GEN3SYS® XT Pro Replaceable Insert Drills

Recommended Drilling Data | Metric (mm)

A91

METRIC ( mm )

Feed Rate (mm/rev) by Diameter

Speed (m/min) - Mist Coolant

12 series

13 series

14 series

15 series

Hardness (BHN) 100 - 150 150 - 250 250 - 350

12.00 mm - 12.99 mm

13.00 mm - 13.99 mm

14.00 mm - 14.99 mm

15.00 mm - 15.99 mm

ISO Material

AM420

Structural Steel A36, A285, A516, etc.

107

0.20 0.18 0.15

0.22 0.20 0.17

0.25 0.23 0.20

0.25 0.23 0.20

91 79

P

IMPERIAL ( in )

Feed Rate (IPR) by Diameter

Speed (SFM) - Mist Coolant

12 series

13 series

14 series

15 series

Hardness (BHN) 100 - 150 150 - 250 250 - 350

12.00 mm - 12.99 mm

13.00 mm - 13.99 mm

14.00 mm - 14.99 mm

15.00 mm - 15.99 mm

ISO Material

AM420

Structural Steel A36, A285, A516, etc.

350 300 260

0.008 0.007 0.006

0.009 0.008 0.007

0.010 0.009 0.008

0.010 0.009 0.008

P

Speed and Feed Multiplier

Depth of Cut

<= 1.5xD

> 1.5xD

Speed Feed

See above chart See above chart

0.75 0.90

NOTE: • The speeds and feeds listed above are based on a rigid setup using air mist through-tool coolant. Speed may be increased up to 50% if using high-pressure flood or through coolant. • If drilling dry without coolant, speed must be reduced significantly based on setup, drill depth, and material hardness. Up to 50% speed and feed reduction may be necessary in these types of applications. • If drilling material thickness of 12.7 mm (0.500") or less, a minimum of 10% reduction in feed is required to minimize material deflection. Factory technical assistance is available through our Application Engineering department: appeng@alliedmachine.com . www.alliedmachine.com | 1.330.343.4283 A91: 41