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Description
DIAMETER DØ6 mm
THICKNESS b2.0 mm
MATERIALHSS
STANDARDDIN 850 A
T-slot cutter 6x2.0 mm DIN 850 A HSS – dimensions and technical data
Tool specifications
| TECHNICAL DATA | |
|---|---|
| Tool type | NFRh shank-type milling cutter |
| Standard | DIN 850 A |
| Cutting diameter D | Ø6 mm |
| Cutting section width b | 2.0 mm |
| Shank diameter d | Ø6.0 mm |
| Shank length l | 40 mm |
| Overall length L | 50.0 mm |
| Number of cutting edges z | 6, straight teeth |
| Material | HSS |
T-slot cutter for metal 6x2.0 mm – construction and Ø6.0 mm shank
Tool construction and application limits
T-slot cutter 6x2.0 mm DIN 850 A, listed in catalogs as NFRh, cuts narrow grooves and slots 2.0 mm wide. The Ø6 mm disc cuts across its full width and enters the material radially, without axial travel.
Cutting edges only on the disc – why the cutter cannot plunge axially
The cutting edges cover the disc circumference and both faces, producing parallel walls in the 2.0 mm wide slot. The neck remains smooth and carries the load; its cross section, rather than the number of cutting edges, determines the feed limit.
Slot length depends on plunge depth
The slot has an arcuate bottom with a radius of 3 mm and a length determined by plunge depth. At t = 3 mm, the chord is l = 2√(t × (D − t)) ≈ 6.0 mm. The smooth bottom transition reduces stress concentration, which is why slots in parts subjected to variable loading are machined with a disc rather than an end mill.
Applications of the 6x2.0 mm T-slot cutter – grooves and slots
Tool application range
The combination of Ø6 mm and a thickness of 2.0 mm falls outside the DIN 6888 Woodruff key series, so the cutter serves as a tool for grooves and slots: retaining ring grooves, seal grooves, recesses for sheet metal, and cutting through thin sections. Select the plunge depth to suit the required slot length, not the tool diameter – with the full disc width engaged, each additional millimeter of penetration increases cutting forces and neck loading.
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Application limitation
Clamping: collet ER-32 with an insert for Ø6.0 mm. A drill chuck will not hold the tool with the disc fully engaged. The 2.0 mm thick disc is sensitive to lateral stress – set the feed at the lower end of the range and do not retract the tool under load. Uncoated HSS operates up to approximately 275 HB; above this, use the HSSE (HSS-Co5) version.
T-slot cutter cutting data – spindle speed and feed for 6x2.0 mm
Conservative values by ISO 513 groups
| Workpiece material | vc [m/min] | fz [mm/tooth] | n [rpm] | vf [mm/min] |
|---|---|---|---|---|
| P Structural steel up to 275 HB | 20–30 | 0.010–0.025 | 1061–1592 | 64–239 |
| P Quenched and tempered alloy steel | 15–25 | 0.010–0.025 | 796–1326 | 48–199 |
| M Stainless steel 304 / 316 | 9–18 | 0.010–0.028 | 477–955 | 29–160 |
| K Gray cast iron | 18–30 | 0.010–0.028 | 955–1592 | 57–267 |
| N Aluminum, brass | 25–50 | 0.010–0.030 | 1326–2653 | 80–478 |
Calculating spindle speed and feed for structural steel
For structural steel, use vc = 25 m/min – at a diameter of 6 mm, this gives 1326 rpm. Calculate the feed rate from vf = fz × z × n: at fz = 0.018 mm and 6 cutting edges, the result is 143 mm/min. Chips exit through the same slot that supplies coolant, so direct the emulsion along the slot and maintain a generous flow.
T-slot cutter 6x2.0 mm – frequently asked questions
Applications, clamping and cutting data
Frequently asked questions
For grooves and slots 2.0 mm wide – grooves for retaining rings and seals, lubrication grooves, recesses for sheet metal, and cutting through thin walls.
For vc = 25 m/min, the result is 1326 rpm. With the disc cutting across its full width, start at the lower end of the range and adjust after the first slot.
No. T-slots per DIN 650 are cut with cutters DIN 851 of type NFRs, for example NFRs 18x8 DIN 851.
The length depends on plunge depth and disc diameter: l = 2√(t × (D − t)). At t = 3 mm and Ø6 mm, the result is approximately 6.0 mm.
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| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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