Rennie Tool Company
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$48.99
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![Kozelo 1pcs Drill Bit - [11.5mm Diameter] M42 8% Cobalt HSS Cutting Tool for Machining Hard Metal Stainless Steel Woodworking Handicraft Use, 135° Cutting Angle TiN — image 1](https://m.media-amazon.com/images/I/51kYiSI5o3L.jpg)
Kozelo 1pcs Drill Bit - [11.5mm Diameter] M42 8% Cobalt HSS Cutting Tool for Machining Hard Metal Stainless Steel Woodworking Handicraft Use, 135° Cutting Angle TiN
★★★★★
$48.99
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107 availableSize: 11.5mm
6.8mm12.6mm4.1mm4.9mm10.8mm4.5mm6.4mm10.4mm8mm11.7mm7.1mm9.5mm1.1mm3.7mm7.6mm9.9mm5.2mm1.5mm3.3mm11.3mm1.9mm9.1mm12.7mm4.8mm4mm10.7mm2.5mm6.3mm8.7mm11.1mm2.1mm4.4mm10.3mm5.5mm11.4mm5.9mm11.8mm1mm7mm3.6mm5.1mm1.4mm7.5mm3.2mm9.8mm1.8mm2.9mm4.3mm2mm4.7mm12.8mm2.8mm8.2mm6.2mm2.4mm8.6mm6.6mm11mm12.4mm10.2mm3.1mm11.5mm5.8mm3.9mm7.4mm1.3mm1.7mm5.4mm4.6mm4.2mm6.9mm2.7mm6.1mm6.5mm10.9mm12.5mm8.1mm5.7mm11.6mm1.2mm9.6mm7.2mm3.4mm10mm1.6mm3mm9.2mm
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About this item
- 1- PACKAGE CONTENTS - 1 pack of 11.5mm drill bits, with a 143mm (5.63") overall length and 78mm (3.07") flute length, featuring a 135° split-point angle for reduced walking and enhanced drilling accuracy in metal, wood, and plastic applications.
- 2- MATERIAL - M42 cobalt high-speed steel drill bits, with a cobalt content 8%, deliver superior hardness and durability. Known for outstanding wear and heat resistance, as well as high crack resistance, these bits excel in drilling high-strength and difficult-to-machine metals. The titanium nitride (tin) coating enhances surface characteristics, boosting wear and corrosion resistance. This treatment contributes to prolonged tool lifespan and improved operational efficiency.
- 3- APPLICATION - For precision drilling in hard metals, hardwoods, composite boards, and carved components, these bits efficiently process dense woods like rosewood and teak. The cutting edges maintain exceptional sharpness even at high RPM, making them perfect for detailed craft carving, mortise-and-tenon joinery, and thin wood sheet drilling - the ultimate tool for woodworking DIY, furniture manufacturing, and artistic carving applications.
- 4- HIGH EFFICIENCY - Cobalt high-speed steel extended service life & reduced wear. Compared to standard HSS drill bits, it offers a 3–5 times longer tool life, significantly lowering the cost per hole. High-efficiency production: Its balanced wear resistance and toughness ensure reliable performance in automated equipment and high-volume machining.
- 5- TAKE NOTICE OF - Position the twist drill perpendicular (90°) to the workpiece surface. Begin drilling at low RPM (500-800) to establish a small hole, then adjust speed based on material: higher for wood, lower for metals. Use cutting fluid to effectively reduce temperature, minimize wear, and extend drill bit life
Product details
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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