


JEM # WAL-69036736903673
M4258-100-B40-04-77 slot and side mill, 100 mm diameter, 40 mm arbor, 4 teethM4258-100-B40-04-77Ø 100 mmArbor 40 mm4 teethSD1204
SpecificationsFrom Walter's product data
- Type
- Slot and side mill
- Cutting Ø
- 100 mm
- 3.937"
- Mount
- Arbor 40 mm
- Shell mill (arbor)
- Teeth
- 4
- Max depth of cut
- 37.7 mm
- Insert seat
- SD1204, LD1704
- LD..
- Overall length
- 80 mm
- Max RPM
- 11,400
- Coolant
- Not listed
- Walter family
- M4258
Metric 40 mm arbor: adapters for it are quoted at the counter. Call the counter for one.
Inserts, mounting and other sizes

Inserts for M4258-100-B40-04-7789 SD1204, LD1704 inserts: pick a grade, chipbreaker and radius. Sold in packs.
All with filters →Chipbreaker
Radius
ISO
| Part no. | Designation | Grade | Chipbreaker | Radius | ISO | Operation | Stock | Price | Add |
|---|---|---|---|---|---|---|---|---|---|
7021632 | SDMT1204AZN-D57 | WAK15 | D57 | .012" | K | — | Ships from Walter | $28.90 | |
7021684 | SDGT1204AZN-F57 | WAK15 | F57 | .012" | K | — | Ships from Walter | $38.40 | |
7786054 | SDET1204AZN-F57 | WEP20 | F57 | .012" | P | — | Ships from Walter | $29.20 | |
7021690 | SDHT1204AZN-G88 | WK10 | G88 | .012" | N | — | Ships from Walter | $36.40 | |
8284893 | SDMT1204AZN-D57 | WKK25G | D57 | .012" | K | — | Ships from Walter | $30.30 | |
7021630 | SDMW1204AZN-A57 | WKP25S | A57 | .012" | P K | — | Ships from Walter | $28.90 | |
7021633 | SDMT1204AZN-D57 | WKP25S | D57 | .012" | P K | — | Ships from Walter | $28.90 | |
7021637 | SDMT1204AZN-F57 | WKP25S | F57 | .012" | P K | — | Ships from Walter | $28.90 | |
7021685 | SDGT1204AZN-F57 | WKP25S | F57 | .012" | P K | — | Ships from Walter | $38.40 | |
7182179 | SDMW1204AZN-A57 | WKP35G | A57 | .012" | P K | — | Ships from Walter | $34.70 | |
7182190 | SDMT1204AZN-D57 | WKP35G | D57 | .012" | P K | — | Ships from Walter | $34.70 | |
7182191 | SDMT1204AZN-F57 | WKP35G | F57 | .012" | P K | — | Ships from Walter | $34.70 |

M4258, every size11 bodies · Slot and side mill
Mount
| Part no. | Designation | Ø | Mount | Teeth | Max depth | Stock | Price | Add |
|---|---|---|---|---|---|---|---|---|
7457858 | M4258-050-C6-02-50-B | 50 mm | Other | 2 | 52 mm | Ships from Walter | $2,262.00 | |
7457859 | M4258-050-P20-02-25-F | 50 mm | Other | 2 | 25 mm | Ships from Walter | $860.00 | |
7458150 | M4258-050-C6-02-75-M | 50 mm | Other | — | 77 mm | Ships from Walter | $3,278.00 | |
7457940 | M4258-063-C8-02-60-B | 63 mm | Other | 2 | 63 mm | Ships from Walter | $2,741.00 | |
7457941 | M4258-063-P30-02-36-F | 63 mm | Other | 2 | 35 mm | Ships from Walter | $1,090.00 | |
7458151 | M4258-063-C8-02-96-M | 63 mm | Other | — | 98 mm | Ships from Walter | $4,022.00 | |
6903672 | M4258-080-B32-03-67 | 80 mm | Arbor 32 mm | 3 | 46.9 mm | Ships from Walter | $2,624.00 | |
7457942 | M4258-080-C8-03-80-B | 80 mm | Other | 3 | 83 mm | Ships from Walter | $3,828.00 | |
7457943 | M4258-080-P40-03-36-F | 80 mm | Other | 3 | 35 mm | Ships from Walter | $1,346.00 | |
7458152 | M4258-080-C8-03-116-M | 80 mm | Other | — | 118 mm | Ships from Walter | $5,433.00 | |
6903673 this | M4258-100-B40-04-77 | 100 mm | Arbor 40 mm | 4 | 37.7 mm | Ships from Walter | $3,766.00 |







