Your search for "Mag bit" revealed the following:
MAG-BIT MAG624-624.9014B-15 4" -15 pk High Speed Steel Pilot Bit
Regular price
$264
$2.64
Save $0.47
MAG-BIT MAG626-626.9015B 1/4" x 1-7/8" HSS Pilot Bit with Spring
Regular price
$520
$5.20
Save $0.92