Sutton Viper D105 13.0mm HSS Jobber Drill Bit
The Sutton Viper D105 is a 13.0mm high speed steel jobber drill bit, made to DIN338 dimensions and sold carded as a single bit. Thirteen millimetre is the top of the standard jobber range and the largest size most people drill with a hand held machine. The Viper point is a 118 degree split point that self centers on the mark, starts clean without walking, and cuts up to 2 times faster than a conventional HSS bit with less pressure.
Key Features
- Viper point design delivers up to 2 times faster drilling than conventional HSS bits
- 118 degree self centering split point
- DIN338 HSS jobber geometry in a 13.0mm diameter
- Reduced drilling pressure for better control
- Suits machine and hand held drilling
- Carded single bit for the toolbox
Specifications
- Diameter: 13.0mm
- Type: HSS jobber drill bit, DIN338
- Model: D105
- Point: 118 degree split point, self centering
- Materials: steel, aluminium, brass, wood and plastics
Applications
- Clearance holes for M12 and M13 bolts
- Pilot holes for M16 and M20 fixings
- Drilling steel, aluminium and brass
- Heavy structural and fabrication work
What You Need To Complete The Job
A 13.0mm bit needs a powerful drill and a steady hand; a corded drill with a side handle is ideal. For masonry, change to an SDS masonry drill, and for steel at this size use a pilot drill first. The rest of the range is in General Hand Tools.
Frequently Asked Questions
Can I use a 13mm bit in a 13mm chuck?
Yes. The DIN338 shank of this 13mm bit fits a standard 13mm chuck directly. It is the largest size a common chuck holds, which is one reason 13mm is the top of the jobber range.
What is a 13mm drill bit used for?
A 13mm HSS bit is the largest standard jobber size, used for clearance holes in heavy fabrication and as a pilot for the biggest common fixings. It is the top end of what a hand held drill can comfortably manage.
What speed should I use for a 13mm bit?
Use a slow to moderate speed with a firm, steady feed and cutting oil. At 13mm the bit needs low revs and real pressure; high speed with light pressure burns the edge and gets you nowhere.
Can I use this bit in a 13mm chuck?
Yes. A 13mm chuck holds the DIN338 shank of this bit directly. Any larger and you would need a reduced shank, but 13mm is the standard chuck limit and this bit fits it.
Is 13mm good for drilling masonry?
No, this is a metal and wood bit. For masonry holes at 13mm use an SDS masonry drill with a carbide tip; it will cut concrete and brick far faster than an HSS bit ever will.



