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Product Specifications:
| Item | Step Drill Bit |
| Decimal Equivalent | 4, 6, 8, 10, 12, 14, 16, 18, 20 |
| Drill Bit Size Included | 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm |
| Finish | Black Oxide |
| Finish-machining | Black Oxide |
| Impact Rated | No |
| Length | 2.562" |
| Material | High Speed Steel |
| Material-machining | High Speed Steel |
| Max. Drilling Depth | 65 mm |
| Max. Hole Size | 20 mm |
| Min. Hole Size | 4 mm |
| No. Of Hole Size | 9 |
| Overall Length | 2 9/16" |
| Primary Material Application | Plastic, Steel |
| Shank Dia. | 3/8" |
| Shank Type | Straight With Three Flats |
| Shank Type-machining | Straight With Three Flats |
| Step Increments | 2 mm |
| Sub-brand | Secure-Grip |
| System Of Measurement | Metric |
Shipping Info:
| Ship weight (kg) | 0.09 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Max. Hole Size | Min. Hole Size | Primary Material Application | Finish-machining | Shank Type-machining | Shank Dia. | No. Of Hole Size | Step Increments | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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48-89-9234 | 7/8" | 3/16" | Plastic, Steel | Black Oxide | Straight With Three Flats | 3/8" | 12 | 1/16" | 2 | €301.19 | |
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48-89-9239 | 1 1/8" | 7/8" | Plastic, Steel | Black Oxide | Straight With Three Flats | 3/8" | 16 | 1/4" | 2 | €407.49 | |
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48-89-9291 | 7/8" | 1/8" | All Materials | Black Oxide | Straight With Three Flats | 1/4", 3/8" | - | 1/32", 1/16" | 1 | €465.99 | |
![]() |
48-89-9256 | 1" | 1/8" | Plastic, Steel | TiAlN | Hex | 1/4" | 24 | 1/16" | 1 | €309.48 | |
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48-89-9257 | 1 1/8" | 1/8" | Plastic, Steel | TiAlN | Hex | 1/4" | 27 | 1/16" | 1 | €263.31 | |
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48-89-9254 | 7/8" | 1/8" | Plastic, Steel | TiAlN | Hex | 1/4" | 31 | 1/16" | 1 | €244.77 | |
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48-89-9399 | 35 mm | 4 mm | Plastic, Steel | Black Oxide | Straight With Three Flats | 1/4", 3/8" | 32 | 1 mm | 1 | €352.24 |
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MILWAUKEE 48-89-9320 Step Drill Bit, 9 Hole Sizes, 4 mm to 20 mm, 2 mm Step Increments, Black Oxide Finish
€110.67 /unit







