Choose a drilling machine for drilling multiple holes of larger diameters

Sensitive bench drilling machine

Pillar drilling machine

Column drilling machine

Radial drilling machine

16.78 mm

16.64 mm

116.64 mm

116.78 mm

0.2 to 0.3 percent

0.3 to 0.8 percent

0.02 to 0.03 percent

0.1 to 0.2 percent

Annealing

Tempering

Nitriding

Hardening

Ferrite and cementite

Ferrite and pearlite

Pearlite and Cementite

Ferrite, Cementite and Pearlite