Irwin Marples 7/8 In. x 3-1/2 In. Reduced Forstner Drill Bit bamboo All cylinders rotate 90 degrees

All cylinders rotate 90 degrees counter clockwise

Pierce point tip geometry for quick plunging in ductwork

Machined aluminum and balanced planer drum for reduced vibration and added durability

Roll-cage construction provides complete protection to withstand extreme job site environments

and abrasion-resistant surfaces

Irwin Marples 7/8 In. x 3-1/2 In. Reduced Forstner Drill Bit bamboo All cylinders rotate 90 degreesBores perfectly smooth, flat bottomed holes. More accurate holes at any angle. Use for boring overlapping holes or pocket holes. Starts the bit cleanly, even or uneven surfaces. Reduced shank fits 3 8" and larger drills and drill presses.