









Milwaukee 48-89-9221 3 Piece Step Drill Bit Set, 1/8"–7/8", HSS
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Milwaukee step drill bits with Jam-Free performance feature a dual-flute design delivering up to 2X faster hole times, up to 4X longer life and up to 50% more holes per battery charge than competitors. Ideal for drilling small and large-diameter holes in steel and plastic, these bits are optimized for cordless drills in high speed. The Rapid Strike tip allows for a fast and accurate start that generates less heat, resulting in longer bit tip life. Black oxide coating also enhances durability, hole quality and bit life. For user convenience and accuracy, each bit has laser-engraved reference marks you can see while drilling. The 3-flat Secure-Grip shank ensures a solid connection with the drill chuck. The step drill bit three-piece set includes bits #1 (48-89-9201), #2 (48-89-9202) and #4 (48-89-9204). Jam-Free performance in high speed with most professional 18 V cordless drills with Lithium-Ion battery technology. Drill Bit Set: Step Drill Bits, 3 Pc, 0.1250" to 0.8750" Drill Bit Size, 135 deg, High-Speed Steel Black Oxide, Split Point, Hex Shank, Series Wire, Drill Bit Set Type: Step Drill Bits , Number of Pieces: 3 , Tool Material: High-Speed Steel , Coating/Finish: Black Oxide , Minimum Drill Bit Size (Frac Inch): 1/8 , Maximum Drill Bit Size (Frac Inch): 7/8 , Minimum Drill Bit Size (Inch): 0.1250 , Maximum Drill Bit Size (Inch): 0.8750 , Series: Wire , Drill Bit Sizes Included (Inch): 1/8 , Step Increments: 1/32 , Number Of Flats: 3 , Minimum Hole Size (Inch): 0.13 , Maximum Hole Size: 0.875 in , Overall Length: 3.1 / 3.01 / 3 , Contents: (1) Carrying Case; (1)#1 Step Drill Bit, 1/8 - 1/2 by 1/32 (48-89-9201); (1)#2 Step Drill Bit, 3/16 - 1/2 by 1/16 (48-89-9202); 1)#4 Step Drill Bit, 3/16 - 7/8 by 1/16 (48-89-9204) , Flute Length: 2.1 / 2.01 / 2 , Material Set Type: Metalworking; Multipurpose Drill Bits , Specification Designation: ANSI , UNSPSC Code: 27112800 , System Of Measurement: Inch , Tool Application: Metalworking; Multipurpose Drill Bits , Product Service Code: 5133
- JAM-FREE performance, dual-flute design provides greater speed and control
- Rapid Strike tip creates fast, accurate starts and generates less heat
- Up to 50% more holes per battery charge and ensures greater user productivity
- 3-Flat Secure-Grip shanks, reduces bit slippage in the chuck
- Up to 2X faster and optimized for cordless drills in high speed
- Optimized geometry with black oxide coating to cut faster and produce less heat
- Laser-engraved reference marks easily stop on any hole size
Specifications:
| Materials & Construction | |
| Color | Black Oxide |
| Finish Type | Black Oxide |
| Material | High Speed Steel (HSS) |
| Outer Material | High Speed Steel (HSS) |
| Product Details | |
| Coating/Finish | Black Oxide |
| Contents | (1) Carrying Case; (1)#1 Step Drill Bit, 1/8 - 1/2 By 1/32 (48-89-9201); (1)#2 Step Drill Bit, 3/16 - 1/2 By 1/16 (48-89-9202); 1)#4 Step Drill Bit, 3/16 - 7/8 By 1/16 (48-89-9204) |
| Drill Bit Set Type | Step Drill Bits |
| Flute Length | 2.1 / 2.01 / 2 |
| Maximum Drill Bit Size (Frac Inch) | 7/8 |
| Maximum Hole Size | 0.875 in |
| Minimum Drill Bit Size (Frac Inch) | 1/8 |
| Minimum Hole Size (Inch) | 0.13 |
| Number Of Flats | 3 |
| Number of Flutes | 2 |
| Number Of Pieces | 3 |
| Point Style | Step Point |
| Series | Wire |
| Specification Designation | Ansi |
| Step Increments | 1/32 |
| Tool Application | Metalworking; Multipurpose Drill Bits |
| Tool Flute Type | Spiral |
| Tool Material | High-Speed Steel |
| Sizing & Dimensions | |
| Height | 9 inches |
| Length | 2 inches |
| Product Dimensions | 2 x 8 x 9 inches |
| Size | 1/8" - 7/8" |
| Weight | 13.7 ounces |
| Width | 8 inches |
| Technical Specifications | |
| Item Package Quantity | 1 |
| Minimum Bore Diameter | 0.13 Inches |
| Point Style | Step Point |
| Shank Type | 3-Flat |
| Surface Recommendation | Metal,Plastic,Steel |
| Tool Flute Type | Spiral |

