Century Drill And Tool Speed Cut Auger Bit 1-3/8″ Overall Length 6″ Flute Length 2-7/8″ Shank 3/8″ Size:1-3/8″ X 6" X 2-7/8″ X 3/8″ PRECISE 4-thread knurl improves adjustment

PRECISE 4-thread knurl improves adjustment accuracy

made of high-quality wood designed to be used with Frost King door bottoms

Johnson's 3800 I-beam level was designed to be durable and easy to use - so much so that it has been the standard in the industry for over 30 years

thick aluminum body will not rust

The vial windows are sonic welded so they won’t pop out on impact like other levels

Century Drill And Tool Speed Cut Auger Bit 1-3/8″ Overall Length 6″ Flute Length 2-7/8″ Shank 3/8″ Size:1-3/8″ X 6" X 2-7/8″ X 3/8″ PRECISE 4-thread knurl improves adjustmentSpeed cut auger bit full screw tip allows bit to self feed Quad flute design for fast chip ejection Non stick coating resists sap and heat build up while cutting