
Toolholders for Shallow Face Grooving D
| 1 | T | A | |
| W | max-a | 1 |
Tmax-a f b
Left-hand shown l 1 Right-hand shown
| Designation | W min | W max | Tmax-a | f | h | b | l1 | D1 min(1) | D1 max(2) | H2 | A1 |
| HFHR/L 20M | 3.00 | 6.00 | 5.30 | 20.0 | 20.0 | 20.0 130.00 | 20.0 | 2000.0 | 29.0 | 22.50 SR M6X16 DIN912 HW 5.0 | |
| HFHR/L 25M | 3.00 | 6.00 | 5.30 | 25.0 | 25.0 | 25.0 150.00 | 20.0 | 2000.0 | 34.0 | 27.50 SR M6X16 DIN912 HW 5.0 |
groove outward or toward center. For user guide, see pages 460-470 (1) Minimum penetration diameter (2) Maximum penetration diameter For inserts, see pages: HFPR/L (447) HFPR/L (full radius) (448)
W max=6 mm Integral Toolholders D1 W D1 For shallow machining up to max. 5 mm depth of groove.
| One toolholder can be mounted with inserts in | W | Min. | Max. |
| 3-6 mm widths. | 3 | 25.6 | 51.5 |
The initial major diameter groove is limited by D1
4 24.1 73.7
the insert geometry in each size.
| After initial groove, face recessing outward or toward | W min=3 mm | 5 | 22.1 | 170 |
| center is not limited by insert geometry. | 6 | 20.8 | ∞ |
HFHPR/L-M h h H2
Perpendicular Toolholders for D 25
1 Shallow Face Grooving f b T max-a W Tmax-a
Left-hand shown l1 Right-hand shown
| Designation | W min | W max | Tmax-a | f | h | b | l1 | D1 min(1) | D1 max(2) | H2 | |
| HFHPR/L 20M | 3.00 | 6.00 | 5.00 | 25.3 | 20.0 | 20.0 | 130.00 | 20.0 | 2000.0 | 29.0 | SR M6X16 DIN912 HW 5.0 |
| HFHPR/L 25M | 3.00 | 6.00 | 5.00 | 30.3 | 25.0 | 25.0 | 150.00 | 20.0 | 2000.0 | 34.0 | SR M6X16 DIN912 HW 5.0 |
groove outward or toward center. For user guide, see pages 460-470 (1) Minimum penetration diameter (2) Maximum penetration diameter For inserts, see pages: HFPR/L (447) HFPR/L (full radius) (448)