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Product Specifications:
| Item | Step Drill Bit |
| Decimal Equivalent | 0.1969, 0.2953, 0.3937, 0.5118, 0.6299, 0.748, 0.8268, 0.9055, 1.0236, 1.1417, 1.2205, 1.2992, 1.378 |
| Drill Bit Size Included | 5 mm, 7.5 mm, 10 mm, 13 mm, 16 mm, 19 mm, 21 mm, 23 mm, 26 mm, 29 mm, 31 mm, 33 mm, 35 mm |
| Finish | Black Oxide |
| Finish-machining | Black Oxide |
| Impact Rated | No |
| Length | 3" |
| Material | High Speed Steel |
| Material-machining | High Speed Steel |
| Max. Drilling Depth | 1/8" |
| Max. Hole Size | 35 mm |
| Mfr. Series | UNIBIT Series |
| Min. Hole Size | 5 mm |
| No. Of Hole Size | 13 |
| Overall Length | 3" |
| Primary Material Application | Aluminum, Brass, Copper, Laminate, Plastic, Steel, Wood |
| Shank Dia. | 3/8" |
| Shank Type | Straight With Three Flats |
| Shank Type-machining | Straight With Three Flats |
| Step Increments | 2 mm |
| Sub-brand | Unibit |
| System Of Measurement | Metric |
Shipping Info:
| Ship weight (kg) | 0.19 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 7.62 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | No. Of Hole Size | Max. Hole Size | Min. Hole Size | Shank Type-machining | Decimal Equivalent | Step Increments | Material | Material-machining | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
10502ZR | 17 | 3/4" | 1/8" | Straight With Three Flats | 0.125, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.5, 0.5625, 0.625, 0.6875, 0.75 | - | High Speed Steel | High Speed Steel | €154.05 | |
![]() |
10311ZR | 1 | 7/8" | 7/8" | Hex | 0.875 | 5/32" | High Speed Steel | High Speed Steel | €64.09 |
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IRWIN INDUSTRIAL TOOLS 11105ZR Step Drill Bit, 13 Hole Sizes, 5 mm to 35 mm, 2 mm Step Increments, Black Oxide Finish
€171.54 /unit


