![Step Drill Bit, Hole Enlarging, Metric, 20 mm Diameter Minimum Hole, 34 mm Diameter Maximum Hole, 8 Steps, 2 mm Step Depth, 8 Hole, 1 Flutes, 1/2 in Shank, 3-Flat Shank, SpeedPoint® Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum](https://amazeassets.bluemeteor.com/amaze-digital-asset/prod/IBT/bf756808-1caa-4bdb-9a03-2775748559dd.jpg)
11581
Step Drill Bit, Hole Enlarging, Metric, 20 mm Diameter Minimum Hole, 34 mm Diameter Maximum Hole, 8 Steps, 2 mm Step Depth, 8 Hole, 1 Flutes, 1/2 in Shank, 3-Flat Shank, SpeedPoint® Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum
Factory Order
MFG #11581
IBT #91913001946
- Cutting Edge Material: HSSDrill Diameter Measurement System: MetricFinish: BrightMaterial: HSSMaximum Hole Diameter: 34 mmMinimum Hole Diameter: 20 mmNumber of Flutes: 1Number of Hole Sizes: 8Number of Steps: 8Point Type: SpeedPoint®Shank Size: 1/2 InchShank Type: 3-FlatStep Depth: 2 mmType: Hole EnlargingWidth: 2.5
- Irwin® Unibit® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel Unibit® step drill bits are perfect for use in mild steel, copper, brass, aluminum, plexiglass, wood, and laminate. Our titanium nitride coated (TiN) bits resist heat and friction, which extends the life of the cutting edge six times longer than standard step drills. And, our cobalt step drill bits are engineered with m35 cobalt steel for maximum life when drilling in the toughest steel, including stainless steel. Most Unibit® step drills are designed with a SpeedPoint® tip that guarantees fast starts. Theyre manufactured with a single flute cutting edge that drills multiple sizes of true, round holes with precise step control. Plus, the hole sizes are permanently laser etched on the inside of the flute, so they can be easily identified throughout the life of the bit. Irwin® Unibit® Step Drill Bit, Hole Enlarging, Metric, 20 mm Diameter Minimum Hole, 34 mm Diameter Maximum Hole, 8 Steps, 2 mm Step Depth, 8 Hole, 1 Flutes, 1/2 in Shank, 3-Flat Shank, SpeedPoint® Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel
Irwin® 11581Step Drill Bit, Hole Enlarging, Metric, 20 mm Diameter Minimum Hole, 34 mm Diameter Maximum Hole, 8 Steps, 2 mm Step Depth, 8 Hole, 1 Flutes, 1/2 in Shank, 3-Flat Shank, SpeedPoint® Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum
IBT #91913001946
MFG #11581