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Mission 3–8 寸 DTH Drill Bit
DTH DRILL BIT · 5 models · 26 sizes · flat / convex / concave
Mission 3–8 寸 DTH Drill Bits – Full Specification Table
26 sizes, matched to your rock formation and rig
| Image | Model | Face | Head Ø | Shank L | Splines | Flush holes | Button shape | Edge | Center | Weight |
|---|---|---|---|---|---|---|---|---|---|---|
 | Mission30 | Flat Face | Φ90 | 225 | 8 | 2 | SP+SBL | 6XΦ14 | 5XΦ12 | 4.8 |
| Mission30 | Flat Face | Φ95 | 225 | 8 | 2 | SP+SBL | 6XΦ14 | 5XΦ12 | 4.9 |
| Mission30 | Flat Face | Φ100 | 225 | 8 | 2 | SP+SBL | 6XΦ14 | 6XΦ12 | 5.1 |
| Mission30 | Flat Face | Φ108 | 225 | 8 | 2 | SP+SBL | 8XΦ13 | 6XΦ12 | 5.4 |
 | Mission40 | Convex Face | Φ108 | 228 | 12 | 2 | SP+SBL | 7XΦ16 | 6XΦ14 | 7.8 |
| Mission40 | Convex Face | Φ115 | 228 | 12 | 2 | SP+SBL | 7XΦ16 | 6XΦ14 | 8.2 |
| Mission40 | Convex Face | Φ127 | 228 | 12 | 2 | SP+SBL | 8XΦ16 | 4XΦ14+3XΦ13 | 9.2 |
| Mission40 | Convex Face | Φ130 | 228 | 12 | 2 | SP+SBL | 8XΦ16 | 4XΦ14+3XΦ13 | 9.3 |
 | Mission50 | Convex Face | Φ140 | 260 | 12 | 2 | SP+SBL | 7XΦ18 | 4X15+3XΦ14 | 13.9 |
| Mission50 | Flat Face | Φ146 | 260 | 12 | 2 | SP | 8XΦ18 | 8XΦ14 | 14.6 |
| Mission50 | Flat Face | Φ152 | 260 | 12 | 2 | SP+SBL | 8XΦ18 | 8XΦ14 | 15 |
| Mission50 | Flat Face | Φ165 | 260 | 12 | 2 | SP+SBL | 8XΦ18 | 9XΦ14 | 17 |
| Mission50 | Concave Face | Φ178 | 260 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+5XΦ14 | 18.5 |
 | Mission60 | Concave Face | Φ154 | 231 | 12 | 2 | SP | 8XΦ18 | 4XΦ16+4XΦ15 | 20.3 |
| Mission60 | Flat Face | Φ165 | 231 | 12 | 2 | SP | 8XΦ18 | 8XΦ16 | 20.5 |
| Mission60 | Concave Face | Φ171 | 231 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+4XΦ15 | 22 |
| Mission60 | Concave Face | Φ178 | 231 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+5XΦ15 | 23 |
| Mission60 | Concave Face | Φ190 | 231 | 12 | 3 | SP | 9XΦ18 | 6XΦ16+5XΦ15 | 24 |
| Mission60 | Concave Face | Φ203 | 231 | 12 | 2 | SP | 10XΦ18 | 8XΦ16+6XΦ15 | 27.3 |
 | Mission80 | Concave Face | Φ203 | 329 | 12 | 2 | SP | 10XΦ18 | 4XΦ18+10XΦ16 | 41.2 |
| Mission80 | Concave Face | Φ216 | 329 | 12 | 2 | SP | 10XΦ18 | 4XΦ18+10XΦ16 | 46 |
| Mission80 | Concave Face | Φ230 | 329 | 12 | 2 | SP | 12XΦ18 | 12XΦ18+6XΦ16 | 48.7 |
| Mission80 | Concave Face | Φ235 | 329 | 12 | 2 | SP | 12XΦ18 | 12XΦ18+6XΦ16 | 49.3 |
| Mission80 | Concave Face | Φ254 | 329 | 12 | 2 | SP | 12XΦ18 | 12XΦ18+8XΦ16 | 56.2 |
| Mission80 | Concave Face | Φ275 | 329 | 12 | 2 | SP | 12XΦ18 | 8XΦ16+19XΦ16 | 62.8 |
| Mission80 | Concave Face | Φ305 | 329 | 12 | 3 | SP | 15XOΦ18 | 12XΦ16+23XΦ16 | 71.3 |
Product Description
Mission 3–8 inch DTH bits match the hammers of the same series and come in flat, convex and concave faces; gauge and centre buttons are set by rock hardness, with spherical (SP) and conical (SBL) combinations for hard rock.
Customization & Packaging
Head diameter, spline count and button layout can be customized to drawing. Standard sizes in stock; bulk lead time confirmed on order.