Fukuda Seiko, Japan
Fukuda Seiko SRM 3S straight shank drill R type
Made in Japan
Manufacturer: Fukuda Seiko
Model: SRM
For hexagon socket bolts (cap bolts). Dealing only with specific agencies.
[If there is a pilot hole, please do not use this product. ]
Material: HSS
Diameter Tolerance: 0 to -0.04
Large diameter torsion angle: 34ﾟ～38ﾟ
Shank diameter tolerance: h8
■ 3S straight shank drill R type (Order number M3 to M18)
| call mark | Tip diameter (Dc1) | Second stage diameter (Dc2) | Step length ( 1) | Groove length ( ) | Overall length (L) | Shank diameter (Ds) |
| M3 | 3.4 | 6.5 | 13 | 25 | 65 | 6 |
| M4 | 4.5 | 8 | 18 | 35 | 75 | |
| M5 | 5.5 | 9.5 | 22 | 40 | 85 | 8 |
| M6 | 6.6 | 11 | 25 | 45 | 90 | |
| M8 | 9 | 14 | 28 | 55 | 100 | 12 |
| M10 | 11 | 17.5 | 30 | 60 | 110 | |
| M12 | 14 | 20 | 32 | 65 | 115 | |
| M14 | 16 | 23 | 35 | 75 | 125 | |
| M16 | 18 | 26 | 40 | 85 | 135 | |
| M18 | 20 | 29 | 45 | 95 | 145 |
■ 3S straight shank drill R type (order code inch size)
| call mark | Tip diameter (Dc1) | Second stage diameter (Dc2) | Step length ( 1) | Groove length ( ) | Overall length (L) | Shank diameter (Ds) |
| 1/4″ | 6.9 | 11 | 25 | 45 | 90 | 8 |
| 5/16″ | 8.9 | 14 | 28 | 55 | 100 | 12 |
| 3/8″ | 10.5 | 15 | 30 | 60 | 110 | |
| 1/2″ | 14.7 | 20 | 32 | 65 | 115 | |
| 5/8″ | 17.9 | 26 | 40 | 85 | 135 |
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