![[UDT] — 521-3007 Heller Bit 4-Flute SDS PLUS Bit](https://img.prosourcemro.com/2026/05/3428781-1-2.jpg)
[UDT] — 521-3007 Heller Bit 4-Flute SDS PLUS Bit
Family ID: 521-3007
The UDT 521-3007 Heller Bit 4-Flute SDS Plus Bit is a rotary hammer drill bit engineered for fast, efficient material removal in concrete and masonry applications, sourced direct from Korea. Four-flute designs are favored in construction and infrastructure work where higher dust evacuation and reduced heat buildup during extended drilling cycles are priorities. Request a quote today for export-ready supply at competitive pricing through a KITA-registered Korean exporter.
50 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| 521-3007 | — | UDT | 3.5-115 | Spec: 3.5 | Overall Length: 115 | ||
| 521-3016 | — | UDT | 4-110 | Spec: 4 | Overall Length: 110 | ||
| 521-3025 | — | UDT | 5-110 | Spec: 5 | Overall Length: 110 | ||
| 521-3034 | — | UDT | 5-160 | Spec: 5 | Overall Length: 160 | ||
| 521-3043 | — | UDT | 5.5-110 | Spec: 5.5 | Overall Length: 110 | ||
| 521-3052 | — | UDT | 5.5-160 | Spec: 5.5 | Overall Length: 160 | ||
| 521-3061 | — | UDT | 6-110 | Spec: 6 | Overall Length: 110 | ||
| 521-3070 | — | UDT | 6-160 | Spec: 6 | Overall Length: 160 | ||
| 521-3089 | — | UDT | 6-210 | Spec: 6 | Overall Length: 210 | ||
| 521-3098 | — | UDT | 6-260 | Spec: 6 | Overall Length: 260 | ||
| 521-3104 | — | UDT | 6.5-110 | Spec: 6.5 | Overall Length: 110 | ||
| 521-3113 | — | UDT | 6.5-160 | Spec: 6.5 | Overall Length: 160 | ||
| 521-3122 | — | UDT | 6.5-210 | Spec: 6.5 | Overall Length: 210 | ||
| 521-3131 | — | UDT | 6.5-260 | Spec: 6.5 | Overall Length: 260 | ||
| 521-3140 | — | UDT | 7-110 | Spec: 7 | Overall Length: 110 | ||
| 521-3159 | — | UDT | 8-110 | Spec: 8 | Overall Length: 110 | ||
| 521-3168 | — | UDT | 8-160 | Spec: 8 | Overall Length: 160 | ||
| 521-3177 | — | UDT | 8-210 | Spec: 8 | Overall Length: 210 | ||
| 521-3186 | — | UDT | 8-260 | Spec: 8 | Overall Length: 260 | ||
| 521-3195 | — | UDT | 8-460 | Spec: 8 | Overall Length: 460 | ||
| 521-3201 | — | UDT | 9-160 | Spec: 9 | Overall Length: 160 | ||
| 521-3210 | — | UDT | 9-210 | Spec: 9 | Overall Length: 210 | ||
| 521-3229 | — | UDT | 10-110 | Spec: 10 | Overall Length: 110 | ||
| 521-3247 | — | UDT | 10-210 | Spec: 10 | Overall Length: 210 | ||
| 521-3256 | — | UDT | 10-260 | Spec: 10 | Overall Length: 260 | ||
| 521-3265 | — | UDT | 10-310 | Spec: 10 | Overall Length: 310 | ||
| 521-3274 | — | UDT | 10-460 | Spec: 10 | Overall Length: 460 | ||
| 521-3292 | — | UDT | 12-210 | Spec: 12 | Overall Length: 210 | ||
| 521-3362 | — | UDT | 12-260 | Spec: 12 | Overall Length: 260 | ||
| 521-3371 | — | UDT | 12-310 | Spec: 12 | Overall Length: 310 | ||
| 521-3380 | — | UDT | 12-450 | Spec: 12 | Overall Length: 450 | ||
| 521-3399 | — | UDT | 13-160 | Spec: 13 | Overall Length: 160 | ||
| 521-3405 | — | UDT | 13-210 | Spec: 13 | Overall Length: 210 | ||
| 521-3414 | — | UDT | 13-260 | Spec: 13 | Overall Length: 260 | ||
| 521-3779 | — | UDT | 14-260 | Spec: 14 | Overall Length: 260 | ||
| 521-3788 | — | UDT | 14-310 | Spec: 14 | Overall Length: 310 | ||
| 521-3797 | — | UDT | 14-450 | Spec: 14 | Overall Length: 450 | ||
| 521-4103 | — | UDT | 16-210 | Spec: 16 | Overall Length: 210 | ||
| 521-4112 | — | UDT | 16-260 | Spec: 16 | Overall Length: 260 | ||
| 521-4121 | — | UDT | 16-310 | Spec: 16 | Overall Length: 310 | ||
| 521-4130 | — | UDT | 16-450 | Spec: 16 | Overall Length: 450 | ||
| 521-4158 | — | UDT | 17-300 | Spec: 17 | Overall Length: 300 | ||
| 521-4167 | — | UDT | 18-250 | Spec: 18 | Overall Length: 250 | ||
| 521-4176 | — | UDT | 18-450 | Spec: 18 | Overall Length: 450 | ||
| 521-4185 | — | UDT | 20-250 | Spec: 20 | Overall Length: 250 | ||
| 521-4194 | — | UDT | 20-450 | Spec: 20 | Overall Length: 450 | ||
| 521-4200 | — | UDT | 22-250 | Spec: 22 | Overall Length: 250 | ||
| 521-4219 | — | UDT | 22-450 | Spec: 22 | Overall Length: 450 | ||
| 521-4228 | — | UDT | 25-250 | Spec: 25 | Overall Length: 250 | ||
| 521-4237 | — | UDT | 25-450 | Spec: 25 | Overall Length: 450 |
