- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Description
INSERT SYSTEMMGMN
CUTTING WIDTH4 mm
INSERT POCKETS2
MAX. DIAMETERØ80 mm
SML 26 K4C parting blade – technical data
Blade dimensions and compatible insert system
| Technical data | |
|---|---|
| Designation | SML 26 K4C |
| Type | double-ended blade |
| Insert system | MGMN (MGM. 4C) |
| Insert width | 4.0 mm |
| Height H | 26 mm |
| Height below the pocket H1 | 21.4 mm |
| Body thickness A | 3.2 mm |
| Length L | 110 mm |
| Max. parting diameter D max | Ø80 mm |
| Insert pockets | 2 (at both ends) |
| Manufacturer | Smoxh |
Blade for parting and grooving – operating principle
Two pockets, spring clamping, overhang scale
Parting blade SML 26 K4C is a double-ended blade for lathe operations: parting off bars and cutting external grooves. The 4 mm wide MGMN carbide insert sits in a spring-clamping pocket — it is held solely by the clamping force of the body, without a screw or wedge.
The body is 3.2 mm thick, which is less than the insert width. This prevents the sides of the blade from rubbing against the groove walls, even when cutting to full depth. Two pockets at opposite ends double tool life — when the first pocket wears out, turn the blade around and use the other end.
An engraved millimeter scale — separate for each pocket — allows quick overhang adjustment for a given bar diameter without measuring with a caliper.
Keep the overhang as short as possible — only slightly greater than the radius of the bar being parted off. A shorter overhang means less blade deflection, less vibration, and a more even end face. During deep cuts, retract the insert every few millimeters to clear chips from the groove, and direct coolant straight into the cutting gap.
2 insert pockets
Worn pocket? Turn the blade 180° — the other end has its own insert pocket.
Spring clamping
The insert is held by the spring clamping force of the body — without a screw or wedge. The SBK-01-9901 wrench opens the pocket.
Engraved scale
A millimeter scale — separate for each pocket — makes it easier to set the blade overhang.
Blade dimensions – dimensional drawing
Side view, cross section and maximum cutting diameter
LENGTH L
110 mm
HEIGHT H
26 mm
THICKNESS A
3.2 mm
Tooling system – MGMN inserts and SMLK blocks
Step-by-step blade installation and compatible components
Installation in 3 steps
1Insert
seat MGMN400 using the wrench SBK-01-9901
2Block
secure the blade in the block SMLK
3Overhang
set using the scale, cutting edge on center ±0.1 mm
✓Ready
parting off bars up to Ø80 mm
Pocket system: MGMN (W type)
COMPATIBLE WITH:
| ✓ | MGMN parting inserts — width 4.0 mm (e.g., MGMN400) |
| ✓ | SMLK series tool blocks — 5 sizes (listed below) |
| ✓ | SBK-01-9901 pocket-opening wrench |
The blade pocket accepts MGMN inserts with a width of 4.0 mm. The MGMN insert has two cutting edges — when one edge becomes dull, simply turn the insert around. Inserts from other grooving families (DGN, GTN, 151.2) use different pockets and are not interchangeable — check the system designation before purchasing. A width of 4 mm provides a more rigid cutting edge than 3 mm, allowing higher feed rates and deeper cuts; material loss per cut increases to 4 mm.
SMLK series – five block sizes
| Block | Shank [mm] | Length [mm] | Compatible Smoxh blades (MGMN) | For this blade |
|---|---|---|---|---|
| SMLK 20-26 | 20 | 86 | SML 26 K2C / K3C / K4C | FITS |
| SMLK 20-32 | 20 | 100 | SML 32 K2C / K3C / K4C | |
| SMLK 25-26 | 25 | 110 | SML 26 K2C / K3C / K4C | FITS |
| SMLK 25-32 | 25 | 110 | SML 32 K2C / K3C / K4C | |
| SMLK 32-32 | 32 | 110 | SML 32 K2C / K3C / K4C |
The first number in the block designation is the shank height for the tool post; the second is the height of the blade being clamped. The SML 26 K4C blade can be mounted in SMLK 20-26 and SMLK 25-26 blocks; -32 blocks accept SML 32 series blades. Each block secures the blade with a screw-tightened clamp and allows continuous overhang adjustment along the scale.
Parting cutting data – speeds and feeds
Guideline values for inserts with a width of 4 mm
The values below are guidelines for coated MGMN inserts with a width of 4 mm when machining with coolant. Refer to the grade data sheet for the specific insert for definitive ranges.
| Workpiece material | Vc [m/min] | fn [mm/rev] |
|---|---|---|
| PCarbon steel | 120–200 | 0.13–0.35 |
| PAlloy steel | 100–170 | 0.13–0.35 |
| MStainless steel | 100–170 | 0.13–0.35 |
| KCast iron | 130–210 | 0.13–0.35 |
Spindle speed selection: n = (1000 × Vc) / (π × D). For a Ø30 mm carbon steel bar at Vc = 160 m/min: n = (1000 × 160) / (3.14 × 30) ≈ 1700 rpm — start at this speed and adjust based on chip shape.
▲
Operating limitations
Do not part off bars larger than 80 mm in diameter — the blade body will contact the material. The cutting edge must be on the lathe centerline within ±0.1 mm: setting it too high leaves a pip, while setting it too low risks insert breakage. Reduce the feed to approximately 75% over the final 2 mm before the centerline.
The SML 26 K4C parting blade combines a rigid body with a height of 26 mm and quick insert changes in a spring-clamping pocket. Two working pockets and compatibility with the widely used MGMN insert system make it a basic tool for parting and grooving on bars up to Ø80 mm.
Product accessories
Reviews
No customer reviews for the moment.
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 |
Recommended for you
This website uses its own and third-party cookies to improve our services and show you advertising related to your preferences by analyzing your browsing habits. To give your consent to its use, press the Accept button.
Cookie preferences
Functional cookiesTechnical
Functional cookies are strictly necessary to provide the services of the shop, as well as for its proper functioning, so it is not possible to refuse their use. They allow the user to browse through our website and use the different options or services that exist on it.
Advertising Cookies
These are cookies that collect information about the advertisements shown to users of the website. They can be anonymous, if they only collect information about the advertising spaces shown without identifying the user, or personalised, if they collect personal information about the user of the shop by a third party, for the personalisation of these advertising spaces.
Analytics cookies
Collect information about the user's browsing experience in the shop, usually anonymously, although sometimes they also allow the user to be uniquely and unequivocally identified in order to obtain reports on the user's interests in the products or services offered by the shop.