High Wear Resistance MTHR A55 Inner Threading Tool for Small Lathe
Machining
Drow_Carbide_Boring_Tools_EN.pdf
Drow_Carbide_Boring_Tools_MD_EN.pdf
Application Field:
The MTHR A55 is an internal boring and turning tool featuring 55°
angled tips, widely used for finishing inner hole threading in mini
turning lathes. Unlike the round shank MIR A55, the MTHR A55 has a
rear end tilt, making it suitable for locking into precise tool
holders. Additionally, its advanced nano coating on ultrafine
carbide ensures a high-quality, smooth machining surface and
excellent wear resistance. This tool is ideal for a wide range of
materials, particularly stainless steels and various alloys.
Product Details--- MTHR A55 Inner Threading Tool
- Tool Material: 100% virgin tungsten carbide.
- Usage: Designed for internal threading machining; also functions as an
inner hole dental cutter.
- Hardness: HRA 91–93.5
- Accuracy: ±0.005 mm
- Coating: To be defined based on your application. The smooth, fine surface
of the coated carbide provides an excellent surface finish.
- Main Differences from MIR A55:a. Rear end tilt, while the MIR A55 features a round shank.b.
Different coating options.c. Compatible with various tool holders.
- Tool Production: Our strong R&D capabilities and advanced equipment enable us
to consistently meet your diverse requirements.
Summary product information as below:
| Brand Name: | Drow |
| Model Number: | MTHR A55 Inner Threading Tool |
| Customized support: | OEM, ODM. |
| Standard: | ISO |
| Product type: | Solid carbide boring tiny tool |
| Material: | Tungsten Carbide,100% new Material |
| Coating: | To be defined per your different demands and application |
| Hardness: | HRA 91~93.5 |
| Flute length | 10.0~25.0mm |
| Flute color: | bronze,matte |
| Precision: | ±0.005mm |
| Shank diameter: | 4.0~7.0mm |
| Shank type | rear end tilt |
| Tip arc: | R0.05-R0.15 |
| Tip angle θ: | 55° |
| Penetration depth | 0.40~1.80mm |
| Mainly Difference to MIR A55: | a.Rear end tilt while MIR A55 is round shank.
b.Different coating.
c. Suitable for different tool holder. |
| Sample Order: | Acceptable |
| Usage: | Internal turning and threading |
| Workpiece Material: | Steel,Stainless steel,Cast iron and so on |
| Machining type: | Semi-Finishing/Finishing |
Product Features:
No Need for Recalibration: Eliminates time costs and enhances efficiency.
Integrated Design: The boring tool is integrally formed, and its unique chip flute
design reduces chip buildup, significantly improving processing
efficiency.
Precision Grinding: The entire process utilizes a five-axis machine tool for precision
grinding, ensuring high accuracy of the tool tip's r-angle and a
smooth cutting edge under 500x magnification.
Internal Cooling: The slotted design on the inclined section at the tail, along with
a central water outlet in the cutter sleeve, enables effective
internal cooling during processing.
Stable Positioning: Solid carbide boring bars are precisely positioned in the adaptor
using a locating pin, while set screw clamps ensure increased
stability for rigid clamping.
Easy Tool Changes: Tools of the same type can be changed using the positioning pin,
maintaining the same total extension length.
Product Specification:
| Model | Minimum diameter of machining hole(mm)ΦA | ΦD | r | L1 | L2 | F | S | θ | Pitch Range | JS25 | AL25 |
| MTHR0431L10A55-N-(C) | 3.1 | 4 | 0.05 | 35 | 10 | 2.9 | 1.0 | 55 | 48-24 | ● | ● |
| MTHR0441L12A55-N-(C) | 4.1 | 4 | 0.05 | 37 | 12 | 3.9 | 1.2 | 55 | 48-24 | ● | ● |
| MTHR0551L15A55-N-(C) | 5.1 | 5 | 0.08 | 40 | I5 | 4.9 | 1.6 | 55 | 48-16 | ● | ● |
| MTHR0661L20A55-N-(C) | 6.1 | 6 | 0.08 | 45 | 20 | 5.9 | 1.9 | 55 | 48-12 | ● | ● |
| MTHR0771L25A55-N-(C) | 7.1 | 7 | 0.15 | 54 | 25 | 7.9 | 2.5 | 55 | 26-11 | ● | ● |
| ●:In Stock (C): Support internal coolant customization JS25,AL25:
coating code |
Why choose us:
Advanced Technology: Complex surfaces and functional structures can be quickly formed
while maintaining high accuracy.
Short Machining Period: Our short production cycle ensures timely delivery according to
agreed schedules.
Crowned Product: We guarantee high quality with precision levels reaching up to
0.005–0.001 mm.
Confidentiality System: Triple confidentiality measures protect customers' private
designs, providing assurance during the proofing process.
Fully Equipped: Our excellent processing capacity features multiple production
lines, advanced equipment, and professional supporting facilities.
Cost-Effective: Thoughtful design and material selection allow us to offer
competitive pricing, helping customers obtain lower prices for
products of the same quality level.
Quality Inspection
1.Projector detection
2.ZOLLER detection
3.Swis edging
4.German forging difference process detection
5.Edge passivation detection
6.Coreless grinding
FAQ
Q1:Do you produce special cutting tools?
A: Yes,we specialize in customized cutter fabricate and translate
the most complex cutting idea into reality, tools manufactured by
us are designed and customized for various demanding applications
and variety materials!
Q2:Do you accept low volume for sample order? And what’s your MOQ
for special tools?
A: Yes, we do. For sample order, MOQ one piece is accepted, and the
sample lead time is 2-3 days. It can be negotiated for special
requirement.
Q3:If we want to cooperate with you, is it possible to get
confidentiality?
A: Sure, all your information including company info, drawings, PO
details will be kept confidential, we can signed NDA if you want
(non disclosure agreement).
Q4: What is your terms of payment?
A: T/T 30% as deposit, and 70% balance before delivery. We'll show
you the photos of the products and packages before you pay the
balance.
Q5: what can you buy from us?
A: Carbide insert,carbide end mill,carbide drill,carbide
boring,cutting tools&customized carbide precision molds.
Q6: What's your delivery way?
A: According to the requirements of customers,we will provide the
best transportation service
