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Brand Name : AMG
Certification : ISO9001
Place of Origin : CHINA
MOQ : 3-10PCS
Payment Terms : T/T/Credit Card
Supply Ability : 30000-100000pcs per month
Delivery Time : 5-12 working days
Packaging Details : Plastic tube
Name : 4 Flute Coolant Through Step Reamer
Inch Or Millimeter : All can be customized
Type : Inner coolant reamer
Diameter : 1-20mm
Overall length : 50-330mm
Suitable for : 304 316L Steel
4 Flute Coolant Through Step Drill for 304 316L Steel AlTiN Coated Carbide Reamer with Internal Cooling Channels
Introduction:
Our premium 4-flute coolant-through step reamer is specifically engineered for high-performance machining of austenitic stainless steels (304/316L). Featuring advanced AlTiN coating and optimized internal coolant channels, this carbide tool delivers superior hole quality and extended tool life in these notoriously gummy, work-hardening materials.
The unique step drill design combines drilling and reaming operations into one efficient process, significantly reducing cycle times while maintaining IT6-IT7 grade tolerances. Ideal for medical, food processing, and marine applications where 304/316L stainless steels' corrosion resistance is critical.
Features:
4-flute design with 35° helix angle for optimal chip evacuation
Polished flute surfaces prevent material adhesion in gummy steels
Step configuration enables combined roughing/finishing in one pass
Sub-micron tungsten carbide (0.5μm) for maximum edge stability
AlTiN nano-coating with enhanced lubricity for stainless steels
Through-tool coolant (2-4 ports) for effective heat management
✓ 4× longer life vs standard HSS reamers in 316L
✓ Ra 0.8μm surface finish achievable
✓ 30% higher feed rates through optimized chip breakers
✓ Eliminates built-up edge (BUE) common with stainless
Diameter range: 3-20mm (0.118"-0.787")
Step configurations: 2-3 steps per tool
Shank options: Straight, Weldon, hydraulic
Special features: Left-hand spiral, reduced neck
Medical Device Manufacturing
Surgical instrument precision holes
Implant component through-holes
Food Processing Equipment
Valve body machining
Mixing shaft bearing seats
Marine & Chemical Systems
Pump housing bores
Heat exchanger tube plates
General Precision Engineering
Hydraulic component finishing
Bearing housing precision bores
Detailed Pictures:
Our workshop:
Promotion policy:
To help you experience our premium products, we’re excited to offer the following exclusive promotions for first-time buyers:
1.Free Test Samples
Get free samples (total value ≤ $20 USD) when you cover the international shipping cost.
Perfect for evaluating our product quality and performance risk-free.
2.$50 USD Discount on First Order
New customers can enjoy a $50 discount on the first order of $500 or more.
A great way to start our partnership with extra value!
Other products:
FAQ:
1. Are you a manufacturer or trading company?
We are a professional manufacturer of carbide tools which established in 2017.
2. Which CNC grinding machine do you use?
All of our carbide tools are produced by imported WALTER grinding machines.
3. Which shipping method do you usually use?
We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, ETC.
We also can send products to your shipping agent in China.
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4 Flute Coolant Through Step Drill for 304 316L Steel AlTiN Coated Carbide Reamer with Internal Cooling Channels Images |