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Description
DIAMETER DØ10.5 mm
THICKNESS b2.2 mm
MATERIALHSS
STANDARDDIN 850 A
T-slot cutter 10.5x2.2 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 | Ø10.5 mm |
| Cutting section width b | 2.2 mm |
| Shank diameter d | Ø10.0 mm |
| Shank length l | 40 mm |
| Overall length L | 45.0 mm |
| Number of cutting edges z | 6, straight teeth |
| Material | HSS |
T-slot cutter for metal 10.5x2.2 mm – construction and Ø10.0 mm shank
Tool construction and application limits
The 10.5x2.2 mm T-slot cutter to DIN 850 A is a shank-type tool of type NFRh for grooves and slots 2.2 mm wide. The Ø10.5 mm disc enters the material radially and machines a slot with an arcuate bottom in a single pass.
Cutting edges only on the disc – why the cutter cannot plunge axially
Six straight peripheral cutting edges and cutting faces produce a slot with clean walls. All torque passes through the neck, which has no cutting edges, so feed the disc into the material only radially and without jerking.
Slot length depends on plunge depth
The slot bottom is an arc with a radius of 5.25 mm, as the disc reproduces its own profile in the material. The arc distributes stress over a wider area than the corner of a rectangular slot machined with an end mill, improving the shaft's fatigue strength. The slot length is calculated from the chord: at a penetration depth of t = 3 mm, it is l = 2√(t × (D − t)) ≈ 9.5 mm.
Applications of the 10.5x2.2 mm T-slot cutter – grooves and slots
Tool application range
This disc size has no corresponding Woodruff key size under DIN 6888, so the tool is used for machining grooves and slots – retaining ring seats, lubrication and seal grooves, assembly recesses and slitting thin walls. The penetration depth is selected according to the required slot length rather than the tool diameter – with the full disc width engaged, each additional millimeter of penetration increases cutting resistance and neck loading.
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Application limitation
Clamping: collet ER-32 with an insert for Ø10.0 mm. A drill chuck will not hold the tool with the disc fully engaged. The 2.2 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 10.5x2.2 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 | 0.015–0.030 | 606–909 | 55–164 |
| P Quenched and tempered alloy steel | 15–25 | 0.015–0.030 | 455–758 | 41–136 |
| M Stainless steel 304 / 316 | 9–18 | 0.015–0.038 | 273–546 | 25–124 |
| K Gray cast iron | 18–30 | 0.018–0.038 | 546–909 | 59–207 |
| N Aluminum, brass | 25–50 | 0.015–0.040 | 758–1516 | 68–364 |
Calculating spindle speed and feed for structural steel
Use vc = 25 m/min. Spindle speed: n = 1000 × 25 / (π × 10.5) ≈ 758 rpm. Feed rate with 6 cutting edges and fz = 0.022 mm: vf = 758 × 0.022 × 6 ≈ 100 mm/min. The disc cuts across its full width in an enclosed channel, so supply plenty of coolant along the slot to flush out chips.
T-slot cutter 10.5x2.2 mm – frequently asked questions
Applications, clamping and cutting data
Frequently asked questions
For grooves and slots 2.2 mm wide – grooves for retaining rings and seals, lubrication grooves, recesses for sheet metal, and cutting through thin walls.
This combination of diameter and thickness does not match any key size in DIN 6888. For keys, select a cutter with a diameter 0.5 mm larger than the slot diameter and a thickness equal to the key width.
collet ER-32 with an insert for Ø10.0 mm. The plain straight shank has no clamping flat, so a drill chuck is unsuitable.
For vc = 25 m/min, the result is 758 rpm. With the disc cutting across its full width, start at the lower end of the range and adjust after the first slot.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| 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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