Industrial 13-Piece M35 Cobalt Twist Drill Bit Set for Stainless Steel

Portable, Uncompromising Drilling Power for Hardened Metals

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Specifications

Product Name	OEM 13-Piece M35 Cobalt Twist Drill Bit Set (1.5-6.5mm)
Tool Type	Jobber Length Twist Drill Bit Set
Material	Premium M35 High-Speed Steel (5% Cobalt Alloy)
Set Configuration	13 Pieces: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm
Point Angle	135° Split Point (Self-centering, fast cut)
Surface Finish	Amber / Gold Oxide Finish (Heat and wear resistant)
Packaging	Size-indexed metal storage case
Target Application	Stainless Steel (Inox), Cast Iron, Hardened Metals, Thick Steel Plates
Brand Name	Xiaoman Tools
Manufacturer	Shanghai Daoge Xiaoman Tools Co., Ltd.
Customized Support	100% OEM/ODM (Custom metal box color, laser etched sizes)

Why buyers pick this one

M35 5% Cobalt Alloy: Engineered for extreme heat and friction. The addition of cobalt dramatically increases the lifespan of the bit, cutting through abrasive and hardened metals where standard HSS immediately fails.
13-Piece Metric Index: Includes the essential daily-use sizes: 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, and 6.5mm. Neatly organized in a folding metal box that fits perfectly in any tool belt or chest.
135° Split Point Geometry: The self-centering tip bites into smooth stainless steel instantly, eliminating the need to use a center punch and reducing the physical thrust force required by the operator.
Industrial Amber Finish: The golden oxide layer reduces friction, retains cutting fluids better, and prevents chip welding during deep-hole metal drilling operations.
Fully Ground Precision: CNC-milled to exact DIN338 standards for perfect concentricity. We supply this set globally with full OEM support, allowing you to customize the metal case with your brand colors and logo.

Overview

Stop burning out standard drill bits on tough materials. The 13-Piece M35 Cobalt Twist Drill Bit Set from Shanghai Daoge Xiaoman Tools Co., Ltd. is specifically curated for machinists, auto mechanics, and metal fabricators who demand serious performance on the go. Forged from premium M35 High-Speed Steel with a 5% Cobalt blend, these bits deliver superior "Red Hardness," easily penetrating high-tensile materials like Stainless Steel (Inox), thick steel plates, and cast iron without losing their temper. The set covers the most critical metric sizes from 1.5mm to 6.5mm and is housed in a rugged, size-indexed metal storage case for rapid bit selection and protection. Featuring an aggressive 135-degree Split Point for instant, no-skate starts, this premium set is an ideal high-margin addition to your tool distribution catalog.