• 98% satisfied customers
  • 72h delivery
  • 30 dni na zwrot
Home
navigate_next
Multi-cutting inserts
navigate_next
Cutting lathe inserts
Carbide insert DCMT 11T308 H6310 Horn - Turning inserts
search
  • Carbide insert DCMT 11T308 H6310 Horn - Turning inserts
  • Carbide insert DCMT 11T308 H6310 Horn - Turning inserts - nr. 1
Horn

Carbide insert DCMT 11T308 H6310 Horn

Horn Horn
12487
€4.21 tax inc.

Net price: €3.42

Instant Shipping
W magazynie: +100 szt.
W magazynie: +100 szt.

Instant Shipping

Call and order: (44) 755-04-05

Description

DCMT 11T308 turning insert – 55° diamond with positive geometry

Technical data
Side length l 11.6 mm
Insert thickness s 3.97 mm
Hole diameter d1 4.4 mm
Corner radius rε 0.8 mm
ANSI code DCMT 32.52
DCMT 11T308 indexable turning insert made of H6310 cemented carbide, single-sided 55° diamond with a hole, countersink and chip breaker

Cutting data for the DCMT 11T308 insert for steel and stainless steel

finishing, semi-finishing and roughing — ISO P and M groups

MaterialFinishingSemi-finishingRoughing
Vc [m/min]Feed f [mm/rev]ap [mm]Vc [m/min]Feed f [mm/rev]ap [mm]Vc [m/min]Feed f [mm/rev]ap [mm]
PSteel 120-225 0.04 0.08 105-220 0.08 0.35 100-200 0.15 2
MStainless steel 124-216 0.04 0.08 120-210 0.08 0.35 110-210 0.15 2

H6310 cemented carbide positive diamond insert – applications and design

single-sided 55° diamond with a hole, countersink and chip breaker

The DCMT 11T308 turning insert is a single-sided, diamond-shaped indexable insert made of H6310 grade cemented carbide, designed for turning steel and stainless steel. The D shape, a diamond with an acute 55° included angle, facilitates machining of contours, undercuts and profiles during longitudinal and copy turning. Positive geometry with a 7° clearance angle reduces cutting forces, allowing smooth operation on slender shafts and in hole boring. The countersunk hole secures the insert with a clamping screw, while the single-sided chip breaker controls chip flow and breaking at low and medium feed rates. Two 55° corners provide two cutting edges, and the nose radius rε 0.8 mm combines surface finish with cutting edge strength. The insert belongs to the DCMT 11T3 family, whose variants differ mainly in nose radius and machining application.

Key advantages of the H6310 cemented carbide insert

  • Two cutting edges — a single-sided positive insert with two 55° corners; when one corner becomes dull, index the insert in its pocket without changing the holder.
  • Grade H6310 for ISO groups P and M — general-purpose PVD-coated carbide: steel (P20-P40) and stainless steel (M20-M40), and occasionally cast iron.
  • Positive 7° geometry — low cutting forces and reduced vibration on thin-walled and slender workpieces and in hole boring.
  • The nose radius rε 0.8 mm provides a good surface finish in finishing and semi-finishing without changing the insert between operations.
  • Dimensions according to ISO 1832: edge length 11.6 mm, IC 9.525 mm (3/8″), thickness 3.97 mm — fit holders with a 11 pocket.
  • Tolerance class M provides repeatable edge positioning after indexing the insert, making it easier to maintain dimensions in production batches.

Applications and cutting data selection for the diamond-shaped insert

The DCMT 11T308 insert (also written without a space as dcmt11t308) is suitable for finishing and semi-finishing shafts, bushings and thin-walled workpieces made of structural steels and stainless steel. Calculate spindle speed using n = 1000·Vc/(π·D): for a shaft diameter of 40 mm at Vc = 200 m/min, the result is approximately 1592 rpm. For stainless steel, maintain a cutting speed of 124–216 m/min and a constant feed rate to reduce work hardening of the layer being cut. The sharp, positive shape and low cutting forces make this turning tool insert a good choice for internal boring with less rigid boring bars. The PVD coating improves edge resistance to abrasion and heat, while the single-sided chip breaker controls chips at feed rates of 0.04–0.15 mm/rev. Keep the depth of cut ap within 0.08–2 mm depending on the operation, from finishing to lighter roughing. Use ample coolant and rigid workpiece clamping for stable chip breaking and good surface quality. Indexable inserts made of H6310 grade cemented carbide are supplied by Korean brand Horn.

▲
Application limitation

Grade H6310 is not intended for steels hardened above 45 HRC — for turning hardened steel, select an insert with a cubic boron nitride cutting edge (CBN).

Rhombic insert designation decoder according to ISO 1832

how to read the DCMT 11T308 code — designation positions 1–7

Designation DCMT 11T308 according to the standard ISO 1832: 4 letters describe geometry and construction, 3 numeric codes describe dimensions. Each field has a number, an icon, and a brief description.

ISO 1832 designation decoder — how to read the code

1Dshape 2Cangle α 3Mtolerance 4Ttype – 511size 6T3thickness 708radius rε

Positions 1–4 · ISO code

1DShape

55° rhombus

2 corners of 55° per side

2CClearance angle

α = 7°

positive, single-sided

3MTolerance

Class M (intermediate)

IC ±0.05 · thickness ±0.13 mm

4TType

Countersunk hole + chip breaker

countersink 40–60°, single-sided chip breaker

Positions 5–7 · dimensions [mm]

511Size

l = 11.6 mm

IC = 9.525 mm · 3/8″

6T3Thickness

s = 3.97 mm

between rake faces

708Corner radius

rε = 0.8 mm

code ÷ 10 → radius in mm

✓ 2 corners × 1 side = 2 cutting edges

Full designation: DCMT 11T308 = 55° diamond · positive 7° · class M · countersunk hole and chip breaker · IC 9.525 mm (l 11.6 mm) · s 3.97 mm · rε 0.8 mm

Compatible turning tools

holders with a 11 diamond pocket (SDHCR, SDJCR, SDNCN) — external and internal turning

SDHCR/L 1616 H1116×16 × 100 mmR right-hand
←L left-hand
→
SDHCR/L 2020 K1120×20 × 125 mmR right-hand
←L left-hand
→
SDHCR/L 2525 M1125×25 × 150 mmR right-hand
←L left-hand
→
SDHCR/L 3232 P1132×32 × 170 mmR right-hand
←L left-hand
→
SDJCR/L 1212 F1112×12 × 80 mmR right-hand
←L left-hand
→
SDJCR/L 1616 H1116×16 × 100 mmR right-hand
←L left-hand
→
SDJCR/L 2020 K1120×20 × 125 mmR right-hand
←L left-hand
→
SDJCR/L 2525 M1125×25 × 150 mmR right-hand
←L left-hand
→
SDJCR/L 3232 P1132×32 × 170 mmR right-hand
←L left-hand
→
SDNCN 1212 F1112×12 × 80 mmR right-hand
←L left-hand
→
SDNCN 1616 H1116×16 × 100 mmR right-hand
←L left-hand
→
SDNCN 2020 K1120×20 × 125 mmR right-hand
←L left-hand
→
SDNCN 2525 M1125×25 × 150 mmR right-hand
←L left-hand
→
SDNCN 3232 P1132×32 × 170 mmR right-hand
←L left-hand
→
S16P SDXCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDXCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDXCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDXCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDXCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SDPCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDPCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDPCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDPCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDPCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SD-CR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SD-CR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SD-CR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SD-CR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SD-CR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SDQCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDQCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDQCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDQCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDQCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S16P SDUCR/L-11Ø16 | Ømin 21 mm | L=170R right-hand
←L left-hand
→
S20R SDUCR/L-11Ø20 | Ømin 25 mm | L=200R right-hand
←L left-hand
→
S25S SDUCR/L-11Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T SDUCR/L-11Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U SDUCR/L-11Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→

Frequently asked questions about the DCMT 11T308 insert

use, turning tool selection, and turning parameters

Two — the diamond has 2 corners of 55° each, and the positive geometry with a hole and countersink is single-sided, so only one side of the insert is used. When one corner becomes dull, simply index the insert in its pocket without changing the holder.

Holders with a 11 diamond-shaped pocket (IC 9.525 mm): for external turning SDHCR/L, SDJCR/L and SDNCN with cross sections of 12×12–32×32 mm; for internal turning, boring bars S16P–S40U with an SDXCR/L, SDPCR/L, SDQCR/L, SDUCR/L or SD-CR/L designation suffix. The full list is available in the compatible turning tools section.

Only in corner radius: 0.4 mm (11T304) is used for finishing at low feed rates with thin chips, while 0.8 mm (11T308) is a general-purpose option for finishing and semi-finishing. The other dimensions — IC 9.525 mm and thickness 3.97 mm — are identical.

Yes — grade H6310 covers group ISO M20-M40. Maintain a cutting speed of 124–216 m/min, a constant feed, and continuous emulsion cooling: austenitic steel conducts heat poorly and work-hardens when cutting is too slow.

Product accessories

Reviews

No customer reviews for the moment.

Add a review about the product

Carbide insert DCMT 11T308 H6310 Horn

Carbide insert DCMT 11T308 H6310 Horn

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.

More information