Rennie Tool Company
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$25.99
Home/DIY & Tools/Power, Garden & Hand Tools/Power Tool Accessories/Drill Bits/Twist Bits/Jobber Drill Bits
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CoCud 4.1mm Drill Bit, #20 Cutting Diameter, 4341 HSS Number Jobber Bits Gold Finish 135° Cutting Angle - (Applications: for Drilling Soft Metal Plastic Wood), 5-Pieces
★★★★★
$25.99
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About this item
- ★ Drill Bit Size --- Cutting edge diameter: #20 (4.089mm); shank diameter: #20; cutting edge length: 55mm / 2.17"; overall length: 83mm / 3.27", Included: 5 Pieces x Mini Drill Bits
- ★PRACTICAL PERFORMANCE --- The micro drill bits offers excellent toughness, combining a gold finish 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, this tiny drill bits are 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 micro drill bits 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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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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