IRWIN Unibit 3/8-in 13-Step Drill Bit Aluminum Light Post Produce hard-fastenened corners by attaching 18V Lithium-Ion

IRWIN Unibit 3 8 in 13 Step Drill Bit Aluminum Light Post Produce hard fastenened corners by attaching 18V Lithium Ion Produce hard fastenened corners by attaching intersecting wallboard panels to a common stud 4 Length Measurement 25 in Variable Length No Actual Thickness (Millimeters) 7 Thickness Measurement 7 mm Wear Layer Thickness (Mils) 22 Protective Wear Layer Urethane ceramic Edge Type Micro beveled Installation Type Interlocking Locking Mechanism Drop lock Floating Yes Underlayment Included Yes (bonded cross‑linked) Pieces per Carton 16 Square Footage Per Carton (Sq Sub Brand Unibit Brand Model Compatibility Universal Number of Hole Sizes 12 Diameters of Holes Drilled 1 8 in to 1 2 in Step Size 1 8 in Shank Size 3 8 in Shank Type Hex Material Black oxide coated HSS Set Individual Set Package Quantity 3 Warranty None CA Residents: Prop 65 Warning(s) Yes wood and laminates 3 flatted shank won't slip in chuck Speed point tip for fast starting Laser marked sizes won't wear off with use Unibit #3 is engineered with M35 cobalt steel for maximum life when drilling in tough steel Unibit #3 cobalt contains a 3 8 in hex shank and contains 9 hole sizes 1 4 in 3 4 in (1 16 in steps) Unibit #1 contains a 1 4 in hex shank and will drill 13 hole sizes 1 8 in 1 2 in (1 32 in steps) Unibit #4 contains a 3 8 in hex shank and will drill 12 hole sizes 3 16 7 8 in (1 16 in steps)