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Description
CROSS SECTION 25×25 mm
LENGTH 150 mm
INSERT RCMT 1604rr
ANGLE κr variable
Technical specifications of the SRDCN 25X25-16 turning tool
| Technical data | |
|---|---|
| ISO designation | SRDCN 25X25-16 |
| Shank height (h) | 25 mm |
| Shank width (b) | 25 mm |
| Overall length (L) | 150 mm |
| Functional overhang (f) | 32 mm |
| Entering angle (κr) | variable, depends on the depth of cut |
| Clearance angle | 7° (pos.) |
| Clamping system | ISO — center screw (S) |
| Insert type | RCMT 1604rr |
| Cutting direction | N — neutral (both directions) |
| Manufacturer | Smoxh |
SRDCN 25X25-16 turning tool – for longitudinal turning and facing
25×25 mm indexable turning tool for an RCMT insert
Turning tool SRDCN 25X25-16 is an indexable turning tool designed for external turning on conventional and CNC lathes. The shank with a 25×25 mm cross section and a length of 150 mm provides the rigidity required for industrial machining. A round insert has no fixed entering angle: κr increases with the depth of cut. The tool performs longitudinal turning, facing, and contouring of gentle profiles.
In the central screw clamping system (S), a screw clamps the RCMT 1604rr insert through its hole, so replacement requires loosening only one screw. The positive geometry of the round insert with a continuous cutting edge is suitable for finishing, providing low cutting forces and a smooth machined surface. The tool is compatible with RCMT 16 inserts in various carbide grades — select the grade to match the workpiece material.
Decoding the SRDCN designation of the SRDCN 25X25-16 turning tool
What the individual letters in the ISO designation mean
Decoding the designation SRDCN
S
CLAMPING
Center screw (S)
The screw secures the insert through its center hole
R
INSERT SHAPE
Round 360°
RCMT insert — contouring and smoothing profiles
D
ENTERING ANGLE
κr — variable
External turning tool with a round insert; the entering angle depends on the point of contact with the material.
C
CLEARANCE ANGLE
α = 7° (pos.)
Positive geometry — low cutting forces, finishing and medium machining
N
DIRECTION
Neutral (N)
Operation in both directions — neutral tool
Shank: 25×25 mm · Insert: RCMT 1604rr
Typical applications of the SRDCN 25X25-16 turning tool
Cutting operations:
| ▸ | Longitudinal turning with facing — the round insert cuts along the axis and faces the end |
| ▸ | Roughing and medium machining — positive RCMT geometry provides low cutting forces |
| ▸ | Profiling and external tapers — the continuous edge of the round insert follows the contour |
| ▸ | Turning steps and shoulders — machining cylindrical surfaces with changes in diameter |
| ▸ | CNC production runs — quick insert replacement and repeatable positioning |
Included
SRDCN 25X25-16 package contents
Package contents:
| ✓ | Tool body SRDCN 25X25-16 | 1 pcs |
| ✓ | Center screw for clamping the insert | 1 pcs |
| ✓ | Hex key for insert replacement | 1 pcs |
| ✗ | RCMT 1604rr cutting insert (sold separately) | — |
Compatible RCMT 1604rr insert
RCMT 1604rr
The cutting insert is not included in the set — must be purchased separately. RCMT insert. Positive geometry means that the insert is single-sided and has a continuous cutting edge, providing low cutting forces and good surface quality.
Select the insert grade to match the workpiece material: P (structural steels), M (stainless steel), K (cast iron), N (aluminum). You can find compatible inserts in the section "Related products" below.
Insert installation and replacement for the SRDCN 25X25-16 turning tool
Instructions for the center screw clamping system (S)
Insert replacement procedure step by step
1 Unscrew the screw
Unscrew the center screw 2-3 turns
2 Clean the insert seat
Remove chips and debris
3 Install the insert
Position in the seat
4 Tighten the screw
Torque 1.5–2.5 Nm
Important: Do not exceed the recommended tightening torque — this may damage the thread in the seat or crack the insert.
Checks before starting work:
| ▸ | Tool overhang — do not exceed 1.5× the shank height without support |
| ▸ | Cutting edge height — set the cutting edge at spindle centerline height |
| ▸ | Insert seat condition — check that the contact surface is not damaged or worn |
| ▸ | Secure clamping — the insert must have no play in the seat |
Note: Use coolant during machining — it extends insert life and improves surface finish. When machining without coolant, reduce the cutting parameters by 20–30%.
Frequently asked questions — SRDCN 25X25-16
This tool accepts inserts RCMT 1604rr in any carbide grade. Select the grade to match the workpiece material: P (steels), M (stainless steel), K (cast iron), N (aluminum). You can find compatible inserts in the "Related products" section below.
A round insert has no fixed entering angle: κr increases with the depth of cut. The tool is used for longitudinal turning, facing, and profiling gentle transitions between diameters.
Select the grade according to the ISO material group: P (non-alloy and alloy steels), M (stainless and heat-resistant steel), K (gray and ductile cast iron), N (aluminum and non-ferrous metals). Grades labeled "universal" are suitable for most applications.
Product accessories
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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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