R Series Deep Hole Drill ZU-0380-20I-R | 20xD Solid Carbide with Internal Cooling-Win Win Industrial Co., Ltd

Highlights

Key Advantages

Internal cooling reaches the cutting edge, so chips flush out instead of packing in the hole and stalling the cycle
20xD reach in one drill: a φ10 mm tool gets you about 200 mm deep without switching to a longer, less rigid setup
Four-plane relief angle keeps the edge strong during interrupted and deep cuts, which cuts down chipping and premature wear
Dual margin clearance supports the drill body in long holes, helping hold straightness and surface finish as depth increases
One series covers 12xD, 20xD and 30xD in φ3–20 mm, so tooling stays consistent across different hole depths
Solid carbide body resists deflection at long overhangs, which matters most in the 20xD and 30xD sizes

Use Cases

Applications

Deep cooling and ejector-pin holes in mold and die plates
Oil galleries and hydraulic manifold bores
Aerospace structural parts where hole straightness is checked
Medical and instrument components with small-diameter deep holes
Engine and transmission housings, crankshaft and camshaft oil passages
Stainless, alloy steel and cast iron parts that are hard to drill with HSS

Specs

Technical Specifications

Model	ZU-0380-20I-R
Series	R Series Deep Hole Solid Carbide Drill
Material	Solid carbide
Diameter range	φ3–20 mm
Depth capacity	20xD (12xD and 30xD also available in this series)
Cooling	Internal cooling
Flute and clearance	Special flute, four-plane relief angle, dual margin clearance
Shank	Cylindrical, h6 (confirm per size before ordering)

Details

Detailed Description

শিরোনাম：R Series Deep Hole Solid Carbide Drill
মডেল：ZU-0380-20I-R
উপাদান：সম্পূর্ণ সলিড কার্বাইড
নকশার বৈশিষ্ট্য
বিশেষ ফ্লুট, বিশেষ গ্রাইন্ডিং হুইল দিয়ে নিখুঁতভাবে গ্রাইন্ড করা
চতুস্তলকীয় রিলিফ অ্যাঙ্গেল কাঠামো, কাটিং স্থিতিশীলতা ও এজ শক্তি নিশ্চিত করে
দ্বৈত মার্জিন ক্লিয়ারেন্স ডিজাইন, স্থিতিশীল সাপোর্ট, গভীর ও লম্বা ছিদ্র প্রক্রিয়াকরণের জন্য উপযুক্ত
স্পেসিফিকেশন পরিসর
১২ গুণ ব্যাস, ২০ গুণ ব্যাস, ৩০ গুণ ব্যাস তিনটি উপ-সিরিজ, ব্যাস φ3–20mm, অভ্যন্তরীণ কুলিং কাঠামো
ইংরেজি সংস্করণ (বিদেশি বাণিজ্য স্বতন্ত্র সাইটে সরাসরি কপি করুন)

FAQ

How deep can the ZU-0380-20I-R actually go?

It is a 20xD drill, so depth is roughly 20 times the diameter — a φ10 mm drill reaches about 200 mm. That is the design limit, not a target. If your setup is less rigid or the material is gummy, work a bit shallower and step up.

Do I still need peck drilling with internal cooling?

Usually far less than with a non-coolant drill, because chips clear better through the coolant flow and the dual margin keeps the body supported. That said, deep holes in tough materials often still run better with a light peck cycle. Start from the recommended parameters and adjust based on chip shape.

Which materials does it handle well?

Carbon and alloy steels, stainless steels, cast irons and aluminum alloys are the common ones. Hardened or abrasive grades will change your speed and feed quite a bit. Tell us the material grade and hardness and we can give you a starting parameter set.

Will it run on my machine's through-spindle coolant?

The drill needs coolant supplied through the tool, so your machine needs through-spindle or a suitable coolant inducer with adequate pressure. Low pressure usually means poor chip evacuation in 20xD holes — check your pressure before committing to a deep run.

How do I pick between 12xD, 20xD and 30xD?

Match depth ratio to your deepest hole plus a small margin, then go no deeper than needed — a shorter ratio is stiffer and more forgiving. If you send hole diameter, depth, material and machine type, we will confirm the size for you.

Lead time and documentation?

Standard diameters are often in stock and ship quickly; specials typically run 2–4 weeks. Inspection reports and dimensional data are available on request — just note it when you place the order.

আর সিরিজ ডিপ হোল ড্রিল ZU-0380-20I-R