Drill Bits For Metal, Wood, Concrete

SPIRAL TYPE HSS-R DRILL BITS FOR METAL

Specifications

In compliance with DIN338, made of high-speed steel, milled, with cylindrical shank, running at right-side rotation.

Sharpening angle 118°.

Advantages

-  prompt removal of swarf and cuttings

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-  high resilience

-  high heat resistance with no loss of its mechanical properties

-  good cutting characteristics

-  can be reconditioned

Application area

-  the drill bits with a sharpened angle of 118° of multi-purpose applications are perfect for drilling in soft and medium-hard metals

-  drilling of relatively deep holes

-  accepted by all types of power drills and drill presses

Recommendations for operation

-  the drill bit hardness must be greater than that of the material to be drilled

-  the best way is to start drilling at a low speed and gradually increase it in the process

-  we recommend to cool the drill bit using oil or fluid coolant

-  use a shorter drill bit, if applicable

-  we recommend to use lower speeds for the hard materials and higher speeds – for softer materials

Notes

Recommendations for reconditioning

The process of resharpening consists in grinding off the worn-out part of the drill bit and sharpening the drill’s cutting edge. The best way for reconditioning is to use a special drill bit sharpening machine.

After the reconditioning, the drill bit must be symmetrical, smooth and free of chippings, burrs and burnings, and the proper value of cutting edge angle must be maintained.

Packing

Compact plastic case with latch

SPIRAL TYPE HSS-G DRILL BITS FOR METAL

Specifications

In compliance with DIN338, made of high-speed steel, fully polished, with cylindrical shank, running at right-side rotation with the sharpening angle of 118°

Advantages

-  prompt removal of swarf and cuttings

-  high resilience

-  high wear-resistance

-  longer service life

-  high heat resistance with no loss of its mechanical properties

-  good cutting characteristics

-  can be reconditioned

Application area

-  the drill bits with a sharpened angle of 118° of multi-purpose applications are perfect for drilling in soft and medium-hard metals

-  drilling of relatively deep holes

-  accepted by all types of power drills and drill presses

Recommendations for operation

-  the drill bit hardness must be greater than that of the material to be drilled

-  the best way is to start drilling at a low speed and gradually increase it in the process

-  we recommend to cool the drill bit using oil or fluid coolant

-  use a shorter drill bit, if applicable

-  we recommend using lower speeds for the hard materials and higher speeds – for softer materials

Notes

Recommendations for reconditioning

The process of resharpening consists in grinding off the worn-out part of the drill bit and sharpening the drill’s cutting edge. The best way for reconditioning is to use a special drill bit sharpening machine.

After the reconditioning, the drill bit must be symmetrical, smooth and free from chippings, burrs and burnings, and the proper value of cutting edge angle must be maintained.

Packing

Compact plastic case with a latch

SPIRAL TYPE DRILL BITS FOR WOOD

Specifications

-  made of carbon steel

-  milled and hardened

-  polished cutting edge

-  centering point with outer cutting edges

-  cylindrical shank

-  rust-proof coating

Advantages

-  gives precise and smooth holes

-  allows drilling with no need for preliminary centre-punching

Application area

-  for drilling in all types of timber, glued wood, fiberboards, chipboards and plywood

-  for drilling using hand drills, power drills and cordless drills/drivers

Recommendations for operation

-  a power drill must always be positioned at a right angle towards a surface and started at low speed, then you may carry on drilling at a required rotation rate

-  we recommend to take the drill bit out after every 30 mm and remove woodchips from the hole otherwise the sawdust and chips will clog the hole and cause jamming of the overheated drill bit

Packing

Compact plastic case with latch

FLAT DRILL BITS FOR WOOD

Specifications

-  made of carbon steel

-  centering point with auxiliary cutting edges

-  hexagonal shank end

Advantages

-  gives precise and smooth holes of large diameters

-  ensures higher speed and accuracy of drilling owing to the centering point and side cutting edges

-  ensures stronger grip by the drill chuck owing to the hexagonal shank end

Application area

-  drilling in softwood and medium-hard timber, chipboards and light construction materials

-  fitting of door locks, windows, drilling for electric wiring and pipe-laying

Packing

Blister pack

DRILL BITS FOR CONCRETE

Specifications

Standard double-flute spiral, carbide tipped

Advantages

-  ensures a faster entry into a material owing to the strong and sharp carbide blade

-  long service life of drill bit owing to the high-strength solder alloy

-  optimal removal of metal swarf from the hole

-  ensures geometrically accurate holes

-  sand-blasting treatment of the drill bit provides its increased wear-resistance and higher strength against impact and bending loads

Application area

Hole drilling in concrete, hollow concrete blocks, foam concrete, masonry and building stones

Packing

Blister pack