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SUMOCHAM drill body Weldon shank DCN A, 5×D, Size: 21
Article no.: 2026567
Catalog no.: 231710
Article code:
Product details
Technical Data
| Through-coolant | yes | |
| Interface position | on the machine | |
| Holder type | plain shank | |
| Holder shape | straight clamping flat | |
| Holder tolerance class | h6 | |
| Shank diameter DS | 25 mm | |
| Length of shank LS | 56 mm | |
| Shank type | HB | |
| Cooling lubricant | yes | |
| Series | SUMOCHAM | |
| Manufacturer’s designation | DCN 210-105-25A-5D | |
| Cutter diameter, min. Dc | 21 mm | |
| Cutter diameter, max. Dc | 21.9 mm | |
| Flute length | 105 mm | |
| Number of cutting edges, total | 2 | |
| Interface | joint 1 | |
| Usable length L1 | 105 mm | |
| Cutting direction | right-hand cutting | |
| Machining method | drilling into solid material (BVB) | |
| Type of product | indexable drill for cutter inserts | |
| Bohrtiefe für Wendeplattenbohrer bis | 5×D | |
| Use for drilling | Cross drilling; Drilling through a stack; concave; limited drilling with oblique exit; oblique spot drilling | |
| Content | single part |
Identification & Classification
| Article number | 2026567 | |
| Catalog number | 231710 | |
| EAN / GTIN | 7291075291261 | |
| Manufacturer number | 3201683 | |
| Article class | 23K |
Description
Version:
SUMOCHAM interchangeable head drilling system for highly efficient drilling with interchangeable drilling heads. Unique clamping mechanism for convenient fixing of the drilling head without additional clamping screw. Versatile material use due to comprehensive drilling head range. Optimum tool stability with twisted coolant channels for high concentricity and lowest possible axial run-out of the bore. Other available versions: base body with round shank, base body for machining chamfers on bores when a chamfer ring is attached, base body especially for use in multi-spindle, sliding headstock and production lathes.
Tolerance class: IT8-IT9, concentricity: 0.03 mm.
Tolerance class: IT8-IT9, concentricity: 0.03 mm.
Application:
Supplied with:
Drill body incl. assembly key for drilling heads.
Note:
- Always select a strategy with medium cutting speeds and high feed rates.
- No rapid traverse and no spindle anti-clockwise rotation during retraction.
- Drilling convex / concave surfaces: Radius of curvature > 15 × DC required, reduce feed rate by up to 50%.
- For cross holes, the maximum permissible diameter is 1/4 of the nominal diameter DC.
- Stack drilling requires stable conditions, reduce gaps between workpiece elements.
- Oblique drill entry and exit up to 7° inclination possible with reduced feed rate (approx. 20 - 30%).
- Designation convention: DCN [size]-[L1]-[⌀DS]A-[L/D]
Examples:
No. 231702 6 DCN 060-009-12A-1.5D
No. 231705 6 DCN 060-018-12A-3D