TiAlN Coated HSS Drill Bit Cutting Tool M35 Cobalt HSS For Stainless Alloy
XRTOOLS M35 Cobalt Center Drill Bit Set – Precision Spotting Tools with TiAlN Coating
TiAlN Coated Center Drill Bit Set – M35 Cobalt HSS for Stainless, Alloy & Carbon Steel
XRTOOLS presents a professional-grade Center Drill Bit Set designed for industrial drilling precision, heat resistance, and long-term use in high-volume operations. Manufactured from M35 cobalt high-speed steel, these drills offer exceptional hardness and red-hot strength, while the TiAlN (Titanium Aluminum Nitride) coating improves wear resistance and supports dry machining.
Whether you're a wholesaler, tool supplier, or OEM partner, this set is optimized for bulk use, industrial performance, and private label flexibility.
Product Advantages – Built for Bulk Use and Precision
Industrial M35 Cobalt Steel: 5% cobalt ensures thermal stability and longer edge retention under heavy-duty operations.
TiAlN Nano-Coating: Allows faster cutting speeds and improved wear resistance in stainless steel and alloy materials.
DIN333 Standard Geometry: Straight flute with accurate point angles (60° / 82° / 90°), suitable for all centering and spotting tasks.
Professional Tolerances: Minimizes walking or misalignment, especially on curved or hard surfaces.
Ready for CNC or Manual Use: Works with both conventional lathes and automated systems.
Technical Specifications (Integrated Table)
| Feature | Details |
|---|---|
| Material | M35 High-Speed Steel with 5% Cobalt (HSS-Co) |
| Coating | TiAlN (Titanium Aluminum Nitride) – heat resistant up to 800°C |
| Point Angles | 60°, 82°, 90° |
| Sizes Available | 1.0mm / 1.5mm / 2.0mm / 2.5mm / 3.15mm / 4.0mm / 5.0mm / 6.3mm |
| Flute Type | Straight Flute (DIN 333 A/B) |
| Shank Type | Round Straight Shank |
| Hardness | HRC 65–67 after vacuum heat treatment |
| Application | Spotting, Centering, Chamfering, Pilot Holes in metal |
Application Scenarios – Trusted Across Industries
| Industry / Field | Application Details |
|---|---|
| CNC Machining Workshops | Spot drilling and centering operations before deep-hole or tapping processes |
| Lathe and Turning Centers | Centering of rotating workpieces using tailstock drilling or live centers |
| Sheet Metal & Fabrication | Chamfered holes for rivets, fasteners, and thread taps on sheet or tubular steel |
| Tool and Die Manufacturing | Pilot drilling in hardened dies or jigs for accurate alignment before further machining |
| Automotive / Aerospace | Starting holes in alloy components subject to vibration, load, or thermal stress |
| Heavy Industry Maintenance | Repair and retrofit drilling where hole alignment is critical |
| DIY / Workshop Settings | Ensures hole accuracy for hobbyists, fabricators, and small-batch manufacturers |
Wholesale Packaging & OEM Support
Designed specifically for bulk orders and reseller channels, our packaging and customization options include:
Standard Wholesale Pack:
5–10 pieces per plastic tube or set box
50–100 pcs per inner box with foam support or slots
Master cartons of 500–1000 pcs for export
Labeling & Branding:
OEM logo laser-engraving
English/Russian bilingual labeling (with barcodes)
Custom size assortment sets (metric or inch)
MOQ Support:
Small MOQ accepted for new distributors
Flexible packaging schemes based on buyer region (Europe, CIS, USA)
Frequently Asked Questions (FAQ)
Q1: Can I order this center drill set with my own brand and box design?
A: Yes. We support full OEM/ODM service including logo marking, color box design, and labeling in English, Russian, or bilingual formats.
Q2: Are these suitable for stainless steel?
A: Absolutely. The M35 cobalt and TiAlN coating combination makes them ideal for drilling into stainless steel, alloy steel, and carbon steel.
Q3: What's the usual MOQ for wholesale orders?
A: For standard products: 500 pcs. For OEM: starting from 1000 pcs. We also support smaller trial orders for new partners.
Q4: Do you offer inch sizes?
A: Yes. In addition to metric (1.0mm–6.3mm), we also provide inch-based center drills from 1/32" to 1/4".
Q5: How do you control quality?
A: All products go through full CNC grinding, hardness testing (HRC65–67), TiAlN coating inspection, and dimensional accuracy checks before packing.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.