BAER UNiTap HSSE-TiAlN Machine Tap 40° RSP – M 4 x 0.7 – DIN 371
UNiTap – The Ultimate All-in-One Machine Tap for Professional Threading
Unlock Maximum Efficiency with the UNiTap High-Performance Machine Tap
Experience a true innovation in threading technology. The UNiTap by BAER Germany is a universal, high-end machine tap engineered for precision, durability, and unmatched versatility. Designed to simplify threading across a wide range of materials and applications, UNiTap helps machine shops and industrial manufacturers cut costs and boost productivity—all with a single tool.
One Tap for All Materials & Machines
Why change tools constantly? The UNiTap is compatible with:
CNC machining centers
Thread tapping machines
Cordless drills
Pneumatic tapping arms
Whether you’re working with steel, aluminum, stainless steel, or even harder alloys, UNiTap delivers flawless threads in a single operation, saving time and reducing tooling inventory.
Engineered for Performance
HSSE Cobalt-Alloy Steel: Superior toughness and heat resistance
Reinforced Shank (DIN 371): Greater stability during cutting operations
Optimized Spiral Flutes: Perfect for blind holes – evacuates chips efficiently
TiAlN Coating: Withstands extreme heat and friction; ideal for dry cutting, deep holes, and high-speed machining
Recoatable up to 5 Times: Extend tool life and reduce replacement costs
Precision in Every Thread
Each UNiTap tap is manufactured with:
Specially treated cutting geometry for optimal chip flow
Homogeneous hardness structure from multi-stage tempering
Universal rake angle designed to perform on nearly all metals
Save Time, Save Money
Eliminate tool changes and setup interruptions
Reduce tool inventory—one tap replaces many
Increase productivity in batch production and flexible job shops
Key Benefits of UNiTap:
Works on almost all materials
Suitable for nearly every threading application
Delivers high-precision threads
Offers extended tool life
Designed for fast, reliable, and clean cutting
Perfect for workshops and manufacturers with variable requirements
Massive cost savings with a single universal tool
Dimensions
| Diameter | 4 |
|---|---|
| Nominal diameter in inches | 0,157 |
| Nominal diameter in mm | 4 |
| Pitch | 0,7 |
| Pitch in mm | 0,7 |
| Dimension | M 4 x 0,7 |
| Square | 3,4 mm |
Characteristics
| Product group | Screw taps |
|---|---|
| Product type | Machine taps |
| Thread standard | M: Metric ISO standard thread according to DIN 13 |
| Tolerance | ISO2/6H |
| Direction | Right |
| Standard | DIN 371 |
| Tensile strength at room temperature | up to 1200 N/mm² | 38 HRC |
| Material | HSSE TiAlN |
Applications
- Steels and steel alloys up to 1200 N/mm²
- Stainless steels up to 1000 N/mm²; Stainless steels; VA steels, INOX, V2A, V4A
- Lamellar graphite cast iron (GG) and with spheroidal graphite (GGG) up to 1000 N/mm²; Grey cast iron, nodular cast iron
- Pure titanium and titanium alloys up to 900 N/mm²
- Pure nickel and nickel alloys up to 900 N/mm²
- All cast and wrought aluminium alloys
- Copper, copper alloys and brass (all chip lengths)
Technical drawing
| D1 | M 4 x 0,7 |
|---|---|
| D2 | 4,5 mm |
| L1 | 63 mm |
| L2 | 7 mm |
| L3 | 21 mm |
| Diameter | 4 |
| Square | 3,4 mm |
Application – Sample materials
| Soft magnetic iron, construction steels, free-cutting steels, case-hardening steels | Cutting speed vc in m/min | |
|---|---|---|
| 1.1014 | RFe80 | 25 – 50 |
| 1.0570 | St52-3 | 25 – 50 |
| 1.0718 | 9SMnPb28 | 25 – 50 |
| 1.6523 | 20NiCrMo2 | 6 – 30 |
| Carbon steels, spring steels, alloyed steels, quenched and tempered steels | Cutting speed vc in m/min | |
|---|---|---|
| 1.0503 | C45 | 20 – 30 |
| 1.0503 | Ck85 | 20 – 30 |
| 1.7218 | 25CrMo4 | 6 – 30 |
| 1.2344 | X40CrMoV5-1 | 6 – 30 |
| Cast steel | Cutting speed vc in m/min | |
|---|---|---|
| 1.4104 | X14CrMoS17 | 12 – 35 |
| 1.4301 | X5CrNi18-10 (V2A) | 12 – 15 |
| 1.4571 | X6CrNiMoTi17-12-2 (V4A) | 12 – 15 |
| 1.4125 | X105CrMo17 | 12 – 15 |
| Grey cast iron | Cutting speed vc in m/min | |
|---|---|---|
| 0.6010 | GG10 | 35 – 50 |
| 0.6020 | GG20 | 35 – 50 |
| 0.6030 | GG30 | 35 – 50 |
| 0.6040 | GG40 | 35 – 50 |
| Spheroidal graphite cast iron, malleable cast iron | Cutting speed vc in m/min | |
|---|---|---|
| 0.7040 | GGG40 | 12 – 45 |
| 0.7060 | GGG60 | 12 – 45 |
| 0.7070 | GGG70 | 12 – 45 |
| 0.8035 | GTW35-04 | 10 – 25 |
| Pure titanium and titanium alloys | Cutting speed vc in m/min | |
|---|---|---|
| 3.7024 | Ti99.5 | 3 – 15 |
| 3.7034 | Ti99.7 | 3 – 15 |
| 3.7165 | TiAl6V4 | 1 – 5 |
| 3.7174 | TiAl6V4Sn2 | 1 – 5 |
| Pure nickel and nickel alloys | Cutting speed vc in m/min | |
|---|---|---|
| 1.3926 | RNi12 | 3 – 10 |
| 2.4668 | NiCr19Fe19NbMo (Inconel 718) | 3 – 10 |
| 2.4630 | Ni-Cr20Ti (Nimonic 75) | 1 – 5 |
| 2.4665 | NiCr22Fe18Mo (Hastelloy X) | 1 – 5 |
| Pure copper and copper alloys, brass, bronze (all chip lengths) | Cutting speed vc in m/min | |
|---|---|---|
| 2.0065 | E-Cu 58 | 50 – 60 |
| 2.1247 | CuBe2 | 30 – 65 |
| 2.0360 | CuZn40 | 30 – 65 |
| 2.1020 | CuSn6 | 12 – 20 |
| Pure aluminum, aluminum cast and wrought alloys (all chip lengths) | Cutting speed vc in m/min | |
|---|---|---|
| 3.0205 | Al99 | 50 – 65 |
| 3.1645 | AlCuMgPb | 50 – 65 |
| 3.2373 | AlCuMgPb | 40 – 65 |
| 3.2583 | G-AlSi12(Cu) | 40 – 65 |
Cutting speed vc [m/min] = (Outer diameter * π * speed) / 1000
Rotation speed n [1/min] = (Cutting speed in m/min * 1000) / (Outer diameter * π)
Feedrate programming [mm/min] = speed * pitch
Please note that the above cutting speeds are indicative and must be adjusted depending on lubrication and actuation.
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