This professional set from Yato (Series GRD) is designed for precision threading and repair work. It covers thread sizes M3 to M20, with lengths ranging from 40 mm to 95 mm and thread pitches from 0.5 mm to 2.5 mm.
Made of HSS M2 high-speed steel, the taps and dies ensure durability, accuracy, and long service life. The set includes 33 manual taps (pre-threader, ripper, finisher), 11 button dies, 6 attachments for button dies (M3–M4, M4.5–M6, M7–M9, M10–M11, M12–M14, M16–M20), 2 threading knobs (M1–M10, M5–M20), 2 ratchets for tapping (M3–M10, M5–M12), a comb gauge for metric and Whitworth threads, and a flat screwdriver (6 × 110 mm). All components are stored in a practical case for easy organization and transport.
The set is designed for 11 thread sizes: M3 × 0.5 mm, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1.0 mm, M8 × 1.25 mm, M10 × 1.5 mm, M12 × 1.75 mm, M14 × 2.0 mm, M16 × 2.0 mm, M18 × 2.5 mm, M20 × 2.5 mm.
TECHNICAL DETAILS:
| Specification | Details |
| Brand | Yato |
| Model | YT-2979 |
| Series | GRD |
| Product Type | Taps and Dies Set |
| Pieces | 56 |
| Sizes | M3–M20 |
| Lengths | 40, 45, 50, 50, 56, 70, 75, 80, 80, 95, 95 mm |
| Thread Pitch | 0.5–2.5 mm |
| Material | HSS M2 |
| Standards | DIN 223, DIN 225, DIN 352, DIN 1814 |
| Set Includes | 33 taps, 11 button dies, 6 die attachments, 2 threading knobs, 2 ratchets, comb gauge, flat screwdriver, case |
| Application | Cutting and repairing threads (M3–M20) |
| Entity Responsible (EU) | TOYA S.A. |
EN 
FR 