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Description
The Irwin 7/8" & 1-1/8" UNIBIT HSS Fractional Step Drill Bit (10239) is a specialized tool designed to create clean, precise holes in a variety of thin materials. Engineered for accuracy and efficiency, this single-flute drill bit offers two hole sizes in one tool, making it a versatile addition to any toolbox. The bit's High-Speed Steel construction and specialized tip ensure long-lasting performance and reliable results on materials like sheet metal, plastic, and brass.
KEY FEATURES AND BENEFITS:
- Self-Starting SpeedPoint Tip: Designed to start drilling on contact, preventing walking or slipping and eliminating the need for a pilot hole.
- Single-Flute Cutting Edge: Provides maximum control and produces true, round holes with a cleaner finish while reducing material damage.
- 7/16" Hex Shank: Locks securely into the drill chuck to prevent slippage and allow better power transfer.
- Laser-Etched Hole Sizes: Permanent markings ensure easy size identification that won’t wear off over time.
SPECIFICATIONS:
- Model Number: 10239
- Hole Sizes: 7/8" and 1-1/8"
- Material: High-Speed Steel (HSS)
- Shank Diameter: 7/16"
- Shank Type: Hex
- Step Depth: 1/8"
- Number of Flutes: 1
- Finish: Black Oxide
HOW TO USE:
- Secure the Bit: Insert the 7/16" hex shank into your drill's chuck and tighten firmly.
- Position the Bit: Place the tip on your drilling mark; the SpeedPoint tip will help prevent slipping.
- Start Drilling: Drill at a moderate speed with steady pressure, allowing the bit to cut without forcing it.
- Drill the First Hole: Continue until the 7/8" step cuts completely through.
- Drill the Second Hole: If a 1-1/8" hole is needed, keep drilling until the second step passes fully through the material.
- Withdraw the Bit: Pull straight back to remove the bit.
- Clean Up: Clear away any shavings or debris from the area.
BENEFITS OF USING IRWIN 7/8" & 1-1/8" UNIBIT HSS FRACTIONAL STEP DRILL BIT (10239):
- Efficiency: Drills two sizes with a single tool, reducing time and tool changes.
- Accuracy: Produces clean, perfectly round holes for a professional finish.
- Versatility: Works effectively on a variety of thin materials such as steel, copper, aluminum, and plastic.
- Control: Step design and single flute allow precision stopping at the desired hole size.
FEATURES:
- Dual-size design offering both 7/8" and 1-1/8" holes.
- Durable HSS construction for extended use.
- SpeedPoint tip for quick, smooth drilling starts.
- Precision single-flute cutting for enhanced accuracy.
- Hex shank design to prevent chuck slippage.
- Clear, permanent laser-etched size markings.
- Optimized for thin materials up to 1/8" thick.
- Protective black oxide finish to resist wear.
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