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| Brand Name: | XRTOOLS |
| Model Number: | 1/8 |
| MOQ: | 500PCS |
| Price: | 3.8$/PCS |
| Delivery Time: | 30-45days |
| Payment Terms: | T/T, L/C, D/P |
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.
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.
| 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 |
| 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 |
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)
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.
