Drills & Screwdrivers IRWIN

"Irwin Tools 10502ZR Unibit Sheet Metal Step Drill Bit Set is a selection of the most popular Unibit step drill bits in the low diameter range (below 7/8""). Ideal for drilling true round holes with precise control in a variety of materials like sheet metal, metal plates, aluminum, fiberglass, plastics, plexiglass and wood. The specially designed cutting edge drills true, round holes for a smooth, clean finish and the SpeedPoint tip penetrates fast, prevents ""walking,"" and eliminates the need for a pilot/starting hole. The hex shank provdes a secure grip in the drill chuck. Plus, the permanent laser-etched sizes inside the flute are easy to read for precise control during the hole enlarging …

Get it all done with one when you choose IRWIN Unibit high speed steel drill bit

Step Drill Bit: 7/8" Min, 7/8" Max, 3/8" Shank Dia, High-Speed Steel, 1 Hole Sizes

IRWIN Unibit Cobalt Step Drill is 6X Longer life vs. the competition

Step Drill Bit: 5.00 mm Min, 35.00 mm Max, Cobalt, 13 Hole Sizes

Step Drill Bit: 4.00 mm Min, 22.00 mm Max, Cobalt, 10 Hole Sizes

Step Drill Bit: 3/8" Min, 3/8" Max, 1/4" Shank Dia, High-Speed Steel, 1 Hole Sizes

Drill a range of holes without changing bits

Step Drill Bit: 3/16" Min, 1/2" Max, 1/4" Shank Dia, High-Speed Steel, 6 Hole Sizes

High Speed Steel fractional self-starting drill bit. Drill a range of holes without changing bits. Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates.

Step Drill Bit: 3/16" Min, 1/2" Max, 1/4" Shank Dia, Cobalt, 6 Hole Sizes

Step Drill Bit: 1/8" Min, 1/2" Max, 1/4" Shank Dia, Cobalt, 13 Hole Sizes

Step Drill Bit: 1/4" Min, 3/4" Max, 3/8" Shank Dia, Cobalt, 9 Hole Sizes

IRWIN High Speed Steel Fractional is ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates

Step Drill Bit: 13/16" Min, 1-3/8" Max, 7/16" Shank Dia, High-Speed Steel, 10 Hole Sizes

Step Drill Bit: 1/2" Min, 1/2" Max, 1/4" Shank Dia, High-Speed Steel, 1 Hole Sizes

Step Drill Bit Set: 4 Pc, 1/8 to 1-3/8", HSS

IRWIN Blue-Groove point and cutting edge for faster chip removal - 4x faster than standard spade bits

IRWIN Blue-Groove point and cutting edge for faster chip removal - 4x faster than standard spade bits

IRWIN Blue-Groove point and cutting edge for faster chip removal - 4x faster than standard spade bits

Spade-Blade Drill Bit: 1/2" Drill Bit, High Speed Steel

2" Overall Length, Straight Drill Bit Receiver

Spade Drill Bit Set: 6 Pc, 1/2 to 1-1/4", HSS

IRWIN Speedbor MAX Speed Bits features three cutting spurs for faster, cleaner holes, less breakout, and extended drilling life