HSS Titanium Drill Bits for Metal 170 pcs KD991 KRAFT&DELE
Key information
Availability:Temporarily out of stock — ask for availability
Shipping cost:From 3.29 Euro
catalog number:KD991
Availability:
EAN code:5903175332073
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:3,90 kg
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HSS Titanium Drill Bits for Metal 170 pcs – Kraft&Dele KD991
A set of 170 high-speed steel (HSS) drill bits with a titanium nitride (TiN) coating, manufactured to the DIN338 standard. The set covers sizes from 1.0 to 10.0 mm and is stored in a metal case with individual slots.
Features of the set
Titanium nitride (TiN) coating
The TiN coating applied to the cutting edge reduces friction during drilling, limits heat build-up in the tool and extends its service life compared with uncoated drill bits. It is easily recognised by the golden colour of the surface.
High-speed steel (HSS)
HSS (high-speed steel) is an iron alloy containing tungsten, molybdenum and cobalt that retains its hardness at elevated working temperatures. It allows drilling at higher rotational speeds than carbon steel drill bits.
135° point angle
A 135° point angle (instead of the standard 118°) improves the drill bit's centring on the material surface — the bit does not slip at the point of entry, which removes the need for a centre punch or centre drill before the actual drilling operation.
DIN338 standard
DIN338 is the standard specifying the dimensions, tolerances and geometry of twist drill bits. Compliance with this standard guarantees interchangeability with other tools and drill chucks made to the same specification.
Technical specification
| Brand / Model | Kraft&Dele / KD991 |
| Number of drill bits | 170 pieces |
| Cutting edge material | High-speed steel (HSS) |
| Coating | Titanium nitride (TiN) |
| Standard | DIN338 |
| Point angle | 135° |
| Sizes (10 of each) | 1.0 / 1.5 / 2.0 / 2.5 / 3.0 / 3.5 / 4.0 / 4.5 / 5.0 / 5.5 / 6.0 / 6.5 / 7.0 / 7.5 / 8.0 mm |
| Sizes (5 of each) | 8.5 / 9.0 / 9.5 / 10.0 mm |
| Set weight | 4 kg |
| Packaging | Metal case with slots |
Drill bit quantity breakdown in the set
Drill bits in the 1.0–8.0 mm range (15 sizes) are supplied in quantities of 10 per size, giving 150 drill bits. Drill bits in the 8.5–10.0 mm range (4 sizes) are supplied in quantities of 5 — 20 drill bits in total. The larger number of pieces in the smaller sizes reflects the typical wear pattern, in which thinner drill bits need replacing more often.
Applications
- Drilling in structural and stainless steel
- Working with aluminium, copper and non-ferrous metal alloys
- Drilling in cast iron and steel sheet
- Workshop and metalworking tasks requiring a range of hole diameters
- Drilling pilot holes for screws, rivets and threaded inserts
- Fabrication and assembly of metal structures
- Servicing and repair of machinery and equipment
- Automotive workshop applications
Storage and use
The metal case with individual slots protects the cutting edges from mechanical damage during transport and storage. Each slot is marked with its size, which makes it easy to find the right drill bit quickly and to keep track of stock levels.
HSS-TiN drill bits should be used at an appropriate rotational speed — an excessively high working temperature shortens the life of the coating. When drilling hard steel, the use of a cutting fluid is recommended. The drill bits can be reconditioned by resharpening, although resharpening removes the TiN coating from the cutting edge area.
Commercial information
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Client: Da...ki,date of purchase 05-03-2026 08:11
