Masonry Drill
Why Do Masonry Drill Bits Have a Blob Of Paint on the End?
Does anyone know for certain, rather than just supposing?
Cheers.
Can’t see how it’s to protect it. For two reasons – fristly, wood work drills don’t have the paint, so why just masonry drills; and secondly, a masonry drill is for drilling into stone, so I presume it’s quite tough already and a few microns of paint aren’t going to significantly help.
Cheers anyway, but please only answer if you know for certain. No guesses, please!
The cutting edge of masonry bits is formed from a chip of tungsten carbide that is brazed onto the end of the steel rod. Tungsten carbide is extremely hard to enable it to resist abrasion but is easily chipped by impacts. The paint does help to provide a cushion that reduces damage in transport.
Wood bits are made from hardened steel that is no-where near as brittle as carbide.
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Faithfull Standard Masonry Drill Bit 8 x 200mm £2.69 |
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Faithfull Standard Masonry Drill Bit 5 x 150mm £1.40 |
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Faithfull Standard Masonry Drill Bit 12 x 300mm £3.86 |
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Faithfull Standard Masonry Drill Bit 5.5 x 150mm £1.51 |
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Irwin 10501833 Masonry Drill Bit for Cordless Drills 7.5mm x 115mm £1.56 |
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Faithfull Standard Masonry Drill Bit 12 x 600mm £6.90 |
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Faithfull Standard Masonry Drill Bit 15 x 150mm £3.23 |
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FAITHFUL STANDARD MASONRY DRILL 18mm Dia. x 160mm. BRAND NEW IN BUBBLE PACK £4.99 |
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JORAN SDS PLUS 19.0mm MASONRY DRILL BIT £9.50 |
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Faithfull Standard Masonry Drill Bit 6.5 x 300mm £3.30 |
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HIGH QUALITY 13mm X 150mm MASONRY DRILL £2.25 |
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2PC SDS PLUS MASONRY HAMMER DRILL DRILLS BITS 16MM x 300MM £8.48 |
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Rawlplug 32 120 Impactor Masonry Drill 10mm x 150mm £5.53 |
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Rawlplug 31 124 Blue Flash Masonry Drill 12mm x 150mm £4.69 |
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Rawlplug 32 144 Impactor Masonry Drill 22mm x 150mm £10.68 |
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Rawlplug 31 120 Blue Flash Masonry Drill 10mm x 150mm BF21 £4.59 |
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Rawlplug 32 440 Impactor Masonry Drill 20mm x 380mm £14.97 |
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Rawlplug 32 140 Impactor Masonry Drill 20mm x 160mm £9.42 |
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Rawlplug 31 116 Blue Flash Masonry Drill 8.0mm x 150mm BF16 £3.96 |
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Rawlplug 32 436 Impactor Masonry Drill 18mm x 380mm £12.24 |
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Rawlplug 32 136 Impactor Masonry Drill 18mm x 150mm £7.95 |
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Rawlplug 32 432 Impactor Masonry Drill 16mm x 380mm £11.82 |
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Rawlplug 31 009 Blue Flash Masonry Drill 4.5mm x 85mm BF8 £3.12 |
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Rawlplug 31 016 Blue Flash Masonry Drill 8.0mm x 120mm BF16 £3.64 |
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Rawlplug 32 132 Impactor Masonry Drill 16mm x 150mm £6.79 |
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Rawlplug 32 428 Impactor Masonry Drill 14mm x 380mm £9.52 |
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Rawlplug 31 014 Blue Flash Masonry Drill 7.0mm x 100mm BF14 £3.22 |
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Rawlplug 32 426 Impactor Masonry Drill 13mm x 380mm £9.21 |
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Rawlplug 32 130 Impactor Masonry Drill 15mm x 150mm £6.58 |
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Rawlplug 31 013 Blue Flash Masonry Drill 6.5mm x 100mm BF12 £3.22 |
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Rawlplug 32 128 Impactor Masonry Drill 14mm x 150mm £6.37 |
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Rawlplug 31 012 Blue Flash Masonry Drill 6.0mm x 100mm BF11 £3.22 |
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Rawlplug 32 116 Impactor Masonry Drill 8mm x 150mm £5.11 |
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Rawlplug 32 344 Impactor Masonry Drill 22mm x 300mm £12.14 |
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Rawlplug 32 126 Impactor Masonry Drill 13mm x 150mm £6.16 |
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Rawlplug 31 011 Blue Flash Masonry Drill 5.5mm x 85mm BF10 £3.12 |
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Rawlplug 32 114 Impactor Masonry Drill 7mm x 150mm £4.48 |
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Rawlplug 32 011 Impactor Masonry Drill 5.5mm x 85mm £3.96 |
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Rawlplug 32 340 Impactor Masonry Drill 20mm x 300mm £10.88 |
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Rawlplug 31 224 Blue Flash Masonry Drill 12mm x 200mm £5.43 |
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Rawlplug 31 010 Blue Flash Masonry Drill 5.0mm x 85mm BF9 £3.12 |
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Rawlplug 31 114 Blue Flash Masonry Drill 7.0mm x 150mm BF14 £3.96 |
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Rawlplug 32 010 Impactor Masonry Drill 5mm x 85mm £3.96 |
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Rawlplug 32 113 Impactor Masonry Drill 6.5mm x 150mm £4.27 |
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Rawlplug 32 332 Impactor Masonry Drill 16mm x 300mm £8.26 |
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Rawlplug 31 216 Blue Flash Masonry Drill 8.0mm x 220mm BF16 £4.17 |
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Rawlplug 31 113 Blue Flash Masonry Drill 6.5mm x 150mm BF12 £3.75 |
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Rawlplug 32 112 Impactor Masonry Drill 6mm x 150mm £4.38 |
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Rawlplug 32 328 Impactor Masonry Drill 14mm x 300mm £7.84 |
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Rawlplug 31 212 Blue Flash Masonry Drill 6.0mm x 220mm BF11 £5.00 |
Masonry Drill