Rennie Tool Company
⏳Price
$8.57
Home/DIY & Tools/Power, Garden & Hand Tools/Power Tool Accessories/Drill Bits/Twist Bits/Jobber Drill Bits
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CoCud 7.9mm Drill Bit, 5/16" Cutting Diameter, 4341 HSS Jobber Bits TiN Coated 135° Cutting Angle - (Applications: for Drilling Soft Metal Plastic Wood), 2-Pieces
★★★★★
$8.57
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1
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About this item
- ★ Drill Bit Size --- Cutting edge diameter: 5/16 inch (7.938mm); shank diameter: 5/16 inch; cutting edge length: 80mm / 3.15 inch; overall length: 116mm / 4.57 inch, Included: 2 Pieces x Drill Bit
- ★PRACTICAL PERFORMANCE --- The twist drill offers excellent toughness, combining a titanium coating and a 135° angle design. It has significant advantages in processing performance and cost-effectiveness, achieving superior processing at low cost and striking a perfect balance between cost and quality.
- ★ Wide Applications --- For acrylic, plastic, wood, soft metals (Cu, Al alloys), carbon steel, cast iron & thin stainless steel, suitable for vehicle maintenance like sheet metal, bolt holes, brackets, wire harness mounts. (not to be used on hardened steels, high-alloy steels, thick stainless steel, or other ultra-hard materials.)
- ★ 4341 High-Speed Steel (HSS) --- Offers high hardness, excellent wear resistance, and good toughness. It is a versatile drill bit suitable for machining medium- to low-hardness materials.
- ★ Useful Tips --- Ensure the drill bit is perpendicular to the workpiece surface—tilting can cause breakage or hole deviation. For beginners: Always verify proper speed and feed rates before formal workpiece machining.
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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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