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QL series DTH bit
DTH DRILL BIT · 8 models · 44 sizes · flat / convex / concave
QL series DTH bit — full size table
44 sizes — we can recommend by rock and rig
| Image | Model | Face | Head Ø | Shank L | Splines | Flush holes | Button shape | Edge | Center | Weight |
|---|---|---|---|---|---|---|---|---|---|---|
 | QL40 | Convex Face | Φ108 | 280 | 10 | 2 | SP+SBL | 7XΦ16 | 6XΦ14 | 9.42 |
 | QL40A | Convex Face | Φ108 | 280 | 10 | 2 | SP+SBL | 7XΦ16 | 6XΦ14 | 9.42 |
| QL40 | Convex Face | Φ115 | 280 | 10 | 2 | SP+SBL | 7XΦ16 | 6XΦ14 | 9.5 |
| QL40A | Convex Face | Φ115 | 280 | 10 | 2 | SP+SBL | 7XΦ16 | 6XΦ14 | 9.5 |
| QL40 | Convex Face | Φ127 | 280 | 10 | 2 | SP+SBL | 8XΦ16 | 4XΦ14 +3XΦ13 | 10.7 |
| QL40A | Convex Face | Φ127 | 280 | 10 | 2 | SP+SBL | 8XΦ16 | 4XΦ14+3XΦ13 | 10.7 |
| QL40 | Convex Face | Φ130 | 280 | 10 | 2 | SP +SBL | 8XΦ16 | 4XΦ14+3XΦ13 | 10.9 |
| QL40A | Convex Face | Φ130 | 280 | 10 | 2 | SP+SBL | 8XΦ16 | 4XΦ14+3XΦ13 | 10.9 |
 | QL50 | Concave Face | Φ140 | 240 | 12 | 2 | SP+SBL | 7XΦ18 | 4XΦ15+3Φ14 | 15.3 |
 | QL50A | Concave Face | Φ140 | 240 | 12 | 2 | SP+SBL | 7XΦ18 | 4XΦ15+3Φ14 | 15.3 |
| QL50 | Flat Face | Φ146 | 240 | 12 | 2 | SP+SBL | 8XΦ18 | 8XΦ14 | 16 |
| QL50A | Flat Face | Φ146 | 240 | 12 | 2 | SP+SBL | 8XΦ18 | 8XΦ14 | 16 |
| QL50 | Flat Face | Φ152 | 240 | 12 | 2 | SP+SBL | 8XΦ18 | 8XΦ14 | 16.5 |
| QL50A | Flat Face | Φ152 | 240 | 12 | 2 | SP+SBL | 8XΦ18 | 8XΦ14 | 16.5 |
 | QL60 | Concave Face | Φ154 | 253 | 12 | 2 | SP | 8XΦ18 | 4XΦ16+4XΦ15 | 22.5 |
 | QL60A | Concave Face | Φ154 | 253 | 12 | 2 | SP | 8XΦ18 | 4XΦ16+4XΦ15 | 22.5 |
| QL50 | Concave Face | Φ165 | 240 | 12 | 2 | SP | 8XΦ18 | 4XΦ16+4Φ14 | 18.5 |
| QL50A | Concave Face | Φ165 | 240 | 12 | 2 | SP | 8XΦ18 | 4XΦ16+4Φ14 | 18.5 |
| QL60 | Flat Face | Φ165 | 253 | 12 | 2 | SP | 8XΦ18 | 8XΦ16 | 23 |
| QL60A | Flat Face | Φ165 | 253 | 12 | 2 | SP | 8XΦ18 | 8XΦ16 | 23 |
| QL60 | Concave Face | Φ171 | 253 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+4XΦ15 | 24.4 |
| QL60A | Concave Face | Φ171 | 253 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+4XΦ15 | 24.4 |
| QL50 | Concave Face | Φ178 | 240 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+5Φ14 | 20 |
| QL50A | Concave Face | Φ178 | 240 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+5Φ14 | 20 |
| QL60 | Concave Face | Φ178 | 253 | 12 | 2 | SP | 8XΦ18 | 6XΦ16+5XΦ15 | 25.3 |
| QL60A | Concave Face | Φ178 | 253 | 12 | 2 | SP | 8XΦ18 | 6XΦ16 +5XΦ15 | 25.3 |
| QL60 | Concave Face | Φ190 | 253 | 12 | 3 | SP | 9XΦ18 | 6XΦ16+5XΦ15 | 26.5 |
| QL60A | Concave Face | Φ190 | 253 | 12 | 3 | SP | 9XΦ18 | 6XΦ16+5XΦ15 | 26.5 |
| QL60 | Concave Face | Φ203 | 253 | 12 | 2 | SP | 10XΦ18 | 8XΦ16+6XΦ15 | 29.7 |
| QL60A | Concave Face | Φ203 | 253 | 12 | 2 | SP | 10XΦ18 | 8XΦ16+6XΦ15 | 29.7 |
 | QL80 | Concave Face | Φ203 | 331 | 16 | 2 | SP | 10XΦ18 | 4XΦ18+ 10XΦ16 | 48.2 |
 | QL80A | Concave Face | Φ203 | 331 | 16 | 2 | SP | 10XΦ18 | 4XΦ18+ 10XΦ16 | 48.2 |
| QL80 | Concave Face | Φ216 | 331 | 16 | 2 | SP | 10XΦ18 | 4XΦ18+10XΦ16 | 51.9 |
| QL80A | Concave Face | Φ216 | 331 | 16 | 2 | SP | 10XΦ18 | 4XΦ18+10XΦ16 | 51.9 |
| QL80 | Concave Face | Φ230 | 331 | 16 | 2 | SP | 12XΦ18 | 12XΦ18+6XΦ16 | 54.7 |
| QL80A | Concave Face | Φ230 | 331 | 16 | 2 | SP | 12XΦ18 | 12XΦ18+6XΦ16 | 54.7 |
| QL80 | Concave Face | Φ235 | 331 | 16 | 2 | SP | 12XΦ18 | 12XΦ18+6XΦ16 | 55.3 |
| QL80A | Concave Face | Φ235 | 331 | 16 | 2 | SP | 12XΦ18 | 12XΦ18+6XΦ16 | 55.3 |
| QL80 | Concave Face | Φ254 | 331 | 16 | 2 | SP | 12XΦ18 | 12XΦ18+8XΦ16 | 62.2 |
| QL80A | Concave Face | Φ254 | 331 | 16 | 2 | SP | 12XΦ18 | 12XΦ18+8XΦ16 | 62.2 |
| QL80 | Concave Face | Φ275 | 331 | 16 | 2 | SP | 12XΦ18 | 8XΦ16+19XΦ16 | 68.8 |
| QL80A | Concave Face | Φ275 | 331 | 16 | 2 | SP | 12XΦ18 | 8XΦ16+19XΦ16 | 68.8 |
| QL80 | Concave Face | Φ305 | 331 | 16 | 3 | SP | 15 XΦ18 | 12XΦ16+23XΦ16 | 77.3 |
| QL80A | Concave Face | Φ305 | 331 | 16 | 3 | SP | 15 XΦ18 | 12XΦ16+23XΦ16 | 77.3 |
Product Description
QL series 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.