Hss Drills
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 3 1 8 TAPER SHANK DRILL SKF BRAND 3125 5 MT HSS  US $719.99
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 Hercules 2 1 2” Dia Morse Taper 5 Shank HSS Drill US $550.00
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 new PTD 3 TS Taper Shank HSS 2FL Drill black Oxi 20300 US $529.09
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 BRAND NEW GUHRING TAPER SHANK DRILL 2 15 16 5MT HSS US $469.25
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 SKF DORMER 1 55 64 HSS Morse Taper Shank Drill A360 ENGLAND US $465.91
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 Precision Twist 115pc HSS Jobber Drill Set MSRP $799 US $461.99
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 new PTD 1 13 16 R40 HSS Screw Machine Length black oxide Twist Drill 40652 US $237.90
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 HSS Taper Shank Drills 3 1 16 5MT MT Puller 1 6 Set US $236.00
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 HSS Taper Shank Drills 305MT MoreNEW US $236.00
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 NEW POWER HOUSE 2 8 HSSH6 PLUGTAP DRILL 498806 US $202.02
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 New R STOCK AG 1” MT 3 Coolant Feeding HSS Drill US $200.00
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 2 5MT HSS Tapered Shank Drill Bit US $200.00
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 IT HSS PARALLEL SHANK TWIST DRILL LONG SERIES 1 11 16 US $199.99
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 PRECISION 113 Pc 1 16 1 2 A Z 1 60 HSS Drill Set 2K US $199.95
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 NEW 2 Annular Cutter Set of 6 for Magnetic Drill HSS US $199.00
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 new PTD 2 3 32 Taper Shank HSS 2FL Drill black 20206 US $197.98
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 Nachi 5 16 L6517U HSS Co 2Flute UG Power Drills US $196.19
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 PTD Precision Twist Drill 2 1 8 HSS Taper Shank Drill 20208 US $196.08
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![CHICAGO LATHROBE Screw Machine Length Drill 2 HSS Oxide 5 5 8 x 8 1 2 482]](http://www.ptalunos.com/images/e/280832034416_0.jpg)
 Dong Woo Reamer Drill Blanks 01695 Wire 18 HSS R$243 US $182.52
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 NEW MORSE CO HSS CORE DRILL TAPER SHANK 4MT 150 US $179.99
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 NEW MELCUT CORE DRILL 1 7 32 MORSE TAPER 2 HSS LK US $179.99
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 1 17 32 5MT Taper Shank Drill HSS 9 3 8 Flute 16 3 8 OAL USA NEW CL4 US $179.95
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How do you remove a broken bolt from an exhaust manifold?
Ive got a bitch of a problem with my motorbike. I was replacing the exhaust when one of the manifold bolts snapped. I heated it up before hand with an oxyacethelene torch but it still snapped.
The remainder of the bolt is flush with the mandfold so i cant get any vice grips on it.
I tried drilling it out. I went and brought some Cobalt tipped HSS drill bits. Using a beast of a dewalt corded drill. But it didnt even touch the stud.
Does anyone know of any other drill bits that are specifically designed to cut through high tensile steel? Diamond tipped drill bits perhaps? But i cant seem to find any in the local hardware shops.
Once a pilot hole had been made the intention was to use a reverse thead stud remover.
Any information or alternative techniques on this problem would be very much appreciated.
carbide tipped drills work well, or masonry drills may help. the bolt has been "work hardened" due to all the heat it has seen. if that doesn't work you could try a "left handed" drill bit but you will need a drill press. If all else fails take the head off and go to your nears machine shop those guys deal with this stuff all the time.
CPD HSS DRILLS
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