Cobalt Drill Bit Short Pouch 4.2mm

PACK SIZE

The price displayed for this product is the unit price of the product. Where a PACK SIZE is indicated, this refers to the recommended ordering quantity and is also indicative of how many of these products are packaged in a box.

Model: ALP921042
Weight: 0.02kg
Pack Dim: 60.00mm x 4.00mm x 4.00mm
UPC: 9002740157977

ALPEN

Price:

R 203.55

Ex VAT: R 177.00

Available Options

Stockist

//HSS PZ-COBALT STUB DRILL BITS

Size: Ø 4.2 x 55/22 mm

Packaged: Qty 1

Range of application:

5% cobalt-alloyed high-efficiency drills with re-inforced web. Specially suitable for drilling stainless steel, acid-resisting steel, springsteel. Best for hand held operations.

Strengths

Self-centering, due to a special point shape
More stable due to re-inforced web
Extra short design for hand held drills
Specially suitable for drilling stainless steel, acid-resisting steel, springsteel
Best for hand held operations
Break-resistant design
High accurate centering

Alpen drill bits are manufactured in Austria.

Cooling recommendations for Cobalt drills
Material		Hardness	Coolant
	Steel	< 400 N/mm2	Emulsion
	Steel	< 850 N/mm2	Emulsion
	Steel	< 1.100 N/mm2	Emulsion
	Steel	< 1.300 N/mm2	Emulsion or Oil
	Stainless Steel		Emulsion
	Cast iron		Dry / Compressed Air / Emulsion
	Titanium		Oil
	Copper and Brass		Oil
	Aluminium		Emulsion
	Composites and Plastics		Emulsion / Water / Air

Sharpening angles and Point shapes

Drill bits are not all the same. Special materials and the different applications need different cutting angles and point shapes. Refer to the table below to learn more about point shapes and the lip angles.


Relieved cone, 118°	Split Point AC, 118°	Split Point C, 130°	Centering Point-Shape E, 180°
Universal point-shape for a lot of drilling applications in steel and iron, non ferritic-materials, plastics and other materials.	Point-shape with increased performance and very good centering. This point shape is being used for all industrial drill bits.	Special point-shape for stainless steels and special materials.	Special point-shape for spot weld drills.