Otto Frei Swiss Jewelers Saw Blades By The Gross-144 Pieces
Single unit weight: -- lbs / -- kg
Single unit weight: -- lbs / -- kg
Otto Frei Swiss jewelers saw blades are manufactured by Scies Miniatures SA in Vallorbe, Switzerland. They combine the precision and cutting feel jewelers love with exceptional flexibility for long life and consistent results. Each blade is 130 mm (5.125") long and fits jeweler’s saws and fretsaws (not coping saws).
Pack Options: Sold by the gross (144 blades) or by the dozen (12 blades).
Recommended Materials: Gold, silver, and other soft alloys like copper, brass, and aluminum.
Selection Tip: Aim to have at least 3 teeth in contact with the workpiece while cutting.
| OF Part No. | Blade Size | Thickness (mm / in) | Width (mm / in) | Teeth per cm (TPI) |
|---|---|---|---|---|
| 149.400G | 8/0 | .15 (.0063) | .33 (.0126) | 33 (84) |
| 149.401G | 7/0 | .18 (.0067) | .36 (.0130) | 33 (84) |
| 149.402G | 6/0 | .18 (.0070) | .36 (.0140) | 30 (76) |
| 149.403G | 5/0 | .20 (.0080) | .41 (.0157) | 26 (66) |
| 149.404G | 4/0 | .23 (.0086) | .43 (.0175) | 25 (66) |
| 149.405G | 3/0 | .25 (.0095) | .48 (.0190) | 22 (61) |
| 149.406G | 2/0 | .26 (.0103) | .53 (.0204) | 21 (56) |
| 149.407G | 1/0 | .28 (.0110) | .58 (.0220) | 20 (53) |
| 149.408G | #1 | .30 (.0120) | .64 (.0240) | 19 (51) |
| 149.410G | #2 | .33 (.0134) | .69 (.0276) | 17 (43) |
| 149.411G | #3 | .36 (.0150) | .74 (.0290) | 16 (40) |
| 149.412G | #4 | .38 (.0158) | .79 (.0307) | 15 (38) |
| 149.413G | #5 | .41 (.0140) | .84 (.0331) | 14 (35) |
| 149.414G | #6 | .43 (.0173) | .94 (.0370) | 13 (33) |
| 149.416G | #8 | .51 (.0197) | 1.14 (.0440) | 11 (28) |
| 149.418G | #10 | .61 (.0240) | 1.35 (.0531) | 10 (25) |
| 149.420G | #12 | .61 (.0240) | 1.65 (.0649) | 8 (20) |
| 149.422G | #14 | .61 (.0240) | 1.75 (.0689) | 7 (18) |
| Blade Size | Recommended Drill # | Otto Frei HSS Twist Drill (SKU) |
|---|---|---|
| 8/0 | #80 | 128.580 |
| 7/0 | #80 | 128.580 |
| 6/0 | #79 | 128.579 |
| 5/0 | #78 | 128.578 |
| 4/0 | #77 | 128.577 |
| 3/0 | #76 | 128.576 |
| 2/0 | #75 | 128.575 |
| 1/0 | #73 | 128.573 |
| #1 | #71 | 128.571 |
| #2 | #70 | 128.570 |
| #3 | #68 | 128.568 |
| #4 | #67 | 128.567 |
| #5 | #65 | 128.565 |
| #6 | #58 | 128.558 |
| #8 | #55 | 128.555 |
Note: If your current package says “Swiss Made Round Back,” you’ve likely been using these same blades under our
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