ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
| Use | ceramic materials |
| Process | Bright finished |
| Type | Twist bits |
| POINT: | 118 Split Point |
| Size | 3.15 |
| Payment Terms | T/T, L/C, D/P |
| Supply Ability | 400,0000Pcs Per Mouth |
| Delivery Time | 30-45days |
| Packaging Details | Plastic box,Double Blister card |
| Material | M2 |
| Surface | bright |
| Hardness | HRC64-65 |
| Oem | Available |
| Name | Center Drill Bits |
| Brand Name | XRTOOLS |
| Model Number | 3.15 |
| Certification | ISO9000 |
| Place of Origin | JIANG SU |
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Product Specification
| Use | ceramic materials | Process | Bright finished |
| Type | Twist bits | POINT: | 118 Split Point |
| Size | 3.15 | Payment Terms | T/T, L/C, D/P |
| Supply Ability | 400,0000Pcs Per Mouth | Delivery Time | 30-45days |
| Packaging Details | Plastic box,Double Blister card | Material | M2 |
| Surface | bright | Hardness | HRC64-65 |
| Oem | Available | Name | Center Drill Bits |
| Brand Name | XRTOOLS | Model Number | 3.15 |
| Certification | ISO9000 | Place of Origin | JIANG SU |
| High Light | M2 center drill hss ，center drill hss DIN333 ，hss ground drill bits | ||
The XRTOOLS M2 Center Drill Bit Set is designed for reliable and precise centering tasks across a wide range of metal materials. Manufactured from M2-grade high-speed steel (HSS), these drills offer a cost-effective solution with excellent toughness, edge stability, and repeatable performance — ideal for general-purpose metal drilling, light-duty CNC setups, and manual operations.
Engineered to DIN 333 standards, this set ensures consistent centering, chamfering, and pilot hole creation with superior accuracy and reduced bit wandering.
1. M2 Steel – Toughness & Versatility
M2 high-speed steel is renowned for its balanced combination of hardness and toughness, making it suitable for non-hardened steel, carbon steel, aluminum, brass, copper, and plastics.
2. Cost-Effective & Durable
Compared with cobalt-alloy drills, M2 drills provide strong cutting performance at a lower cost, making them ideal for large-volume users, training workshops, and moderate-speed drilling tasks.
3. CNC-Ground Precision
Each bit is fully ground with precision CNC machines to ensure a smooth surface finish, optimal runout control, and clean chip evacuation.
4. Standard-Compliant Geometry
Follows DIN 333 type A/B geometry with accurate 60° or 90° point angles, allowing users to produce centered starts before deeper drilling or threading operations.
| Feature | Details |
|---|---|
| Material | M2 High-Speed Steel (HSS) |
| Coating | Steam Oxide / Bright Finish (customizable: Black, Amber, TiN on request) |
| Point Angle Options | 60°, 82°, 90° |
| Flute Type | Straight flute |
| Shank Type | Round straight shank |
| Hardness | HRC 62–64 |
| Size Range Available | 1.0mm – 6.3mm (also available in inch: 1/32" – 1/4") |
| Standards | DIN 333 Type A / Type B |
| Application | Spot drilling, centering, chamfering on mild and medium-hard materials |
| Industry | Use Case |
|---|---|
| General Metalworking | Pilot holes and center points in carbon steel, mild steel, and aluminum |
| Lathe Operations | Tailstock centering before turning |
| Maintenance & Repair Shops | Drill prep work on machine parts and structural components |
| DIY / Training Workshops | Ideal for students and technicians needing reliable, economic tooling |
| Electrical Enclosures | Chamfering holes on aluminum boxes, conduit fittings, and sheet metal panels |
| Small-Scale CNC Use | Initial drilling setup on plastic and non-hardened metals |
XRTOOLS offers flexible packaging for wholesalers and distributors:
Standard Retail Packs:
5 pcs per plastic case with labeled slots
Anti-rust oiled sleeves for long storage
Bulk OEM Packs:
50–100 pcs per inner box
Master cartons up to 1000 pcs
Private label with laser logo, bilingual labels (EN/RU), barcode-ready
Customization Options:
Your logo & color scheme
Size mix sets (metric/inch)
Finish options: black oxide, bright, or gold (TiN)
Q1: Is M2 HSS suitable for stainless steel?
A: M2 performs best on mild and medium-hard materials. For stainless steel or hardened alloys, we recommend upgrading to M35 cobalt variants.
Q2: Can I customize the finish or coating?
A: Yes. We offer black oxide, bright polished, TiN-coated, and steam-treated finishes depending on your application and order volume.
Q3: What is the minimum order quantity (MOQ)?
A: For OEM orders, MOQ is typically 1000 pcs. For stock items, trial orders from 200–300 pcs can be accepted.
Q4: Do you support bilingual packaging for export?
A: Yes. We offer English + Russian labeling and documentation for your region.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2018
Total Annual:
500-600
Employee Number:
135~150
Ecer Certification：
Verified Supplier
Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in Danyang, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We speciali... Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in Danyang, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We speciali...
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