C20-120-3D
ø12mm 3D JCD Replaceable-Tip Drill Shank

The 3D shank is the production workhorse for through-holes and shallow blind-holes in steel, cast iron, and aluminium. Fast insert change — under 30 seconds — means zero downtime on transfer lines and high-volume machining centres. Combines the economics of insert tooling with solid carbide tip precision.

D 12mmL1 36mmD1 24mmDs 20mmInsert: HCD-12.0-12.9Wrench: T6MOQ 1 pc

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C20-120-3D

ø12mm 3D Modular Shank · C20 (Ds 20 mm)

✓ Factory direct — no distributor margin

✓ MOQ 1 piece, ships 1–5 days

✓ Matching insert HCD-12.0-12.9 also available

Technical Specifications

Product CodeC20-120-3D
Cutting Diameter (D)12 mm
Overall Length (L1)36 mm
Body Diameter (D1)24 mm
Shank Diameter (Ds)20 mm (C20 (Ds 20 mm))
Depth Ratio3D (3× diameter)
Required InsertHCD-12.0-12.9
Clamping ScrewCM2.2*9
Torx WrenchT6
CoolantInternal through-coolant up to 80 bar
SystemJCD Replaceable-Tip Modular Drill
MOQ1 piece
Lead Time1–5 business days

3D Shank Diagram

C20-120-3D ø12mm 3D JCD modular drill shank diagram
D
ø12
L1
36
D1
ø24
Ds
ø20
Ratio
3D
Insert
12.0

ø12mm 3D — recommended applications

  • Precision fixture plates
  • Hydraulic sub-plates
  • Electronic housing features
  • Small instrument bodies
Machining Tip: At ø12mm the C20 shank (Ds=20mm) mounts directly in standard ER20 or SK collet systems. Feed rate 0.10–0.18 mm/rev; spindle speed up to 4,000 RPM in steel.

Recommended Work Materials

6061 Aluminium
C45 Steel
304 Stainless
EN-GJL-250 Grey Iron

Required Insert

HCD-12.0-12.9
ø12.0–12.9mm · 140° point · ø3mm coolant
Insert change < 30 seconds — no shank removal required

ø12.00 mm Also Available In

Order C20-120-3D Today

Factory direct. MOQ 1 piece. Don't forget to order matching insert HCD-12.0-12.9 for immediate production.