Rennie Tool Company
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$28.99
Home/DIY & Tools/Power, Garden & Hand Tools/Power Tool Accessories/Drill Bits/Twist Bits/Jobber Drill Bits
sourcing map 29.5mm Drill Bit 1/2" Reduced Shank 4241 High-Speed Steel
★★★★★
$28.99
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About this item
- SIZE: Cutting edge diameter: 29.5mm, shank diameter: 1/2", flute length: 78mm/3.07 inch, total length: 152mm/5.98 inch, package content: 1 Pcs x Reduced Shank Drill Bit
- MATERIAL: The 4241 High-speed steel twist drill bits delivers high hardness, wear resistance, and toughness for light-duty machining of low-carbon steel, aluminum, brass, acrylic, plastic, and wood, offering optimal cost-performance balance for small equipment. The Nitriding Black surface treatment enhances the corrosion resistance and wear resistance of the drill bits, effectively extending their service life.
- 118-DEGREE POINT TIP: Conventional Point, not easy to slide, suitable for wood, plastic soft metal, and other materials drilling, widely used in daily operation, more appropriate for home and light industry use, simple operation, strong adaptability.
- WIDE APPLICATIONS: For general metalworking & light-duty applications at low speeds. Perfect for drilling iron, copper, aluminum alloys (medium-low hardness metals) and wood. A cost-effective solution for basic machining needs. The Black and Gold surface treatment enhances the corrosion resistance and wear resistance of the drill bits, effectively extending their service life.
- TIP: When using a large drill bit, it’s best to start by drilling smaller holes. This makes it easier to create larger holes accurately, select the appropriate coolant when running at high speeds when using hss drills to prevent tool overheating and wear.
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Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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