Jiangsu Xingrui Precision Tools Co., Ltd.
| name | Hole Saw HSS Bi-Metal Saws |
| Surface | Bright Finish |
| Process | Fully Ground |
| Type | Hole Saw |
| Use | COPPER |
| Material | High Speed Steel |
| Size | 50mm |
| Advantage | Long Life and smothly drilling,Competitive |
| Oem | Acceptable |
| Package | Plastic case,Plasitc Box |
| Payment Terms | L/C, D/P, T/T, Western Union |
| Supply Ability | 10000PCS PER DAY |
| Delivery Time | 25-30 days |
| Packaging Details | Plastic box |
| Model Number | 50mm |
| Brand Name | XRTOOLS |
| Certification | ISO9000 |
| Place of Origin | CHINA |
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Product Specification
| name | Hole Saw HSS Bi-Metal Saws | Surface | Bright Finish |
| Process | Fully Ground | Type | Hole Saw |
| Use | COPPER | Material | High Speed Steel |
| Size | 50mm | Advantage | Long Life and smothly drilling,Competitive |
| Oem | Acceptable | Package | Plastic case,Plasitc Box |
| Payment Terms | L/C, D/P, T/T, Western Union | Supply Ability | 10000PCS PER DAY |
| Delivery Time | 25-30 days | Packaging Details | Plastic box |
| Model Number | 50mm | Brand Name | XRTOOLS |
| Certification | ISO9000 | Place of Origin | CHINA |
| High Light | 50mm hole saw hss ，50mm hss hole saw ，metal hole saw hss | ||
The Problem: Copper is a "soft but sticky" metal that creates unique challenges during large-diameter boring
The Result: This leads to an immediate loss of cutting efficiency, smoke buildup, and ragged, oversized holes that fail to meet plumbing or electrical specifications
Thermal Accumulation: Standard M3 steel cannot dissipate the heat generated by the high-speed friction of a 50mm diameter cup against copper
Mechanical Resonance: Uniform tooth spacing causes the saw to vibrate or "chatter" against the copper pipe or plate, resulting in a scalloped edge that requires extensive deburring
Metallurgical Stability: Our 50mm Master Series utilizes HSS M35 (5% Cobalt) metallurgy
Variable Pitch Geometry: The 4/6 TPI Non-Linear teeth disrupt harmonic resonance
| Technical Pillar | Specification Detail | Industrial Benefit |
| Material Grade | HSS M35 (5% Cobalt) |
Thermal Integrity: Prevents copper "galling" at high RPMs
|
| Boring Accuracy | TIR (Runout) ≤ 0.22mm |
Precision Fit: Ensures exact 50mm clearance for 2" pipes
|
| Tooth Geometry | 4/6 TPI Variable Pitch |
Burr-Free Finish: Drastically reduces secondary deburring time
|
| Cutting Depth |
38mm (1-1/2") Cup |
High Capacity: One-pass boring through thick copper plates
|
| Welding Standard | Electron-Beam Fusion |
Shatter-Proof: Permanent bond between HSS edge and alloy base
|
• Industrial Plumbing Infrastructure: Creating precision entries for 2-inch copper main lines in commercial water treatment systems
• Electrical Busbar Fabrication: Clean boring in high-conductivity copper busbars for switchgear and power distribution panels
•HVAC Heat Exchangers: Reliable, high-speed boring in copper fins and manifold plates where thermal management is critical
Selection Logic: While M42 (8% Cobalt) is excellent for stainless steel, M35 (5% Cobalt) provides the optimal balance of toughness and heat resistance for non-ferrous metals like copper
Durability: M35 offers a significant increase in service life over standard M3 saws in copper applications, maintaining a sharp edge even after repetitive cuts
Q: What is the optimal RPM for 50mm in Copper?
A: For best results, run between 130 - 150 RPM
Q: Do I need cutting oil for Copper?
A: Yes
Q: Can this be used for copper-nickel alloys (CuNi)?
A: Absolutely
Hardness Standard: Teeth hardened to HRC 64-66 for long-term edge retention
Concentricity: Verified Total Indicator Runout (TIR) ≤ 0.22mm for stable, zero-wobble operation
Compliance: Manufactured in accordance with international industrial engineering standards
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2008
Total Annual:
500-600
Employee Number:
30~50
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 YangZhou, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We special... Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in YangZhou, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We special...
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