01
Overview
NC spot drill D8/90°
CLGR-D0001 · HOFFMANN · Order 112020 8. A 90° centre / spot drill, Ø8 mm — spots true centres before drilling.
8.000Dc Ø mm
90°SIG point
79mmLtot length
2Z flutes
In stock14 on hand · crib A·3
02
Geometry
Dimensions & profile
The cutting end and overall envelope, with the 2D profile drawn to the 90° point.
- DcCutting diameter
- 8.000 mm
- LsCutting edge length
- 4.000 mm
- L4Maximum usable length
- 25.000 mm
- LtotOverall length
- 79.000 mm
- XsLength for tool assembly
- 41.000 mm
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Performance
Cutting geometry
The angles and flute count that set how it spots and centres.
- SIGPoint angle
- 90.000 °
- ZNumber of flutes
- 2
- λHelix angle
- 0.000 °
04
Coolant
Delivery
How coolant reaches the cutting zone.
- CFECoolant entry
- External
- TCHThrough coolant
- No
- SUBSubstrate
- HSS-Co
- COATCoating
- TiN
- mWeight
- 0.03 kg
05
Classification
Where it sits
Category and ISO grouping for this tool.
- Tool category
- Drilling → Centre / spot drills
- ISO 13399 group
- Spotting / centring tool
- Manufacturer
- HOFFMANN
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Connections
Machine & workpiece side
How the tool couples to the machine — and that nothing sits on the workpiece side.
Machine side (2)
- HSK-A63 · ER25 collet chuck
- BT40 · ER25 collet chuck
Workpiece side (0)
No workpiece-side connections on this item.
Shank
Ø8 mm cylindrical (DIN 6535 HA)
07
Assemblies
Where it's used
The built assemblies this item is part of.
Spot & drill Ø8 cycleASM-0007
08
Stock
On hand
Availability for this owned item — surfaced, not collapsed.
- Status
- In stock
- On hand
- 14
- Location
- Crib A · drawer 3
- Reorder point
- 6
09
Files
Drawings & data
Attached drawing, model and datasheet.
Drawing — CLGR-D0001.dxf2D · 84 KB Model — CLGR-D0001.step3D · 1.2 MB Datasheet — 112020-8.pdfPDF · 311 KB