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Description
Technical data Ø16.5 mm metal drill bits
| Technical data | |
|---|---|
| Working diameter of drill d | Ø16.5 mm |
| Overall length l1 | 178 mm |
| Flute length l2 | 120 mm |
| Shank diameter d1 | 13 mm |
- Drill bit manufactured according to DIN-338
- Suitable for drilling materials up to 35 HRC
- 118° point angle suited to drilling steel and cast steel
- Made from the finest grade of high-speed steel (HSS)
- Produces a hole with an h8 tolerance
- Low hole surface roughness
Cutting data for the Ø16.5 mm HSS NWKa drill bit
| Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Spindle speed n [rpm] | Total feed rate [mm/min] |
|---|---|---|---|---|
| PSteel | 14-25 | 0.2 | 270 | 54 |
| KCast iron | 10-18 | 0.2 | 193 | 39 |
May be useful
Cutting parameters calculator
16.5 mm HSS DIN 338 reduced-shank metal drill bit – a tool with standard geometry
High quality a Ø16.5 mm HSS drill bit meeting DIN 338 requirements with a reduced shank guarantees consistent machining performance. The shank reduced to 13 mm in diameter allows direct mounting in commonly used chucks. The DIN 338 standard defines precise design requirements, ensuring compliance with European industrial standards.
Specifications of the Varel 16.5 mm drill bit according to the DIN 338 standard
- DIN 338 – a standardized 118° point angle and precisely defined flute geometry
- Shank reduced to 13 mm – allows quick mounting in industrial and magnetic drills without additional sleeves
- Standard-compliant 118° point angle – a versatile value optimized for a variety of metallic materials
- Grinding of the cutting portion – ensures cutting edge accuracy and stability during drilling
- High-speed steel (HSS) according to DIN 338 – a material with properties that guarantee durability in metalworking
- Varel brand product – tools compliant with European quality standards
Compliance with the DIN 338 standard ensures compatibility and predictable tool performance. The shank reduced to 13 mm is a practical solution for facilities with standard equipment, eliminating the need for specialized adapters.
Frequently asked questions
The DIN 338 standard defines clear geometric and material specifications, guaranteeing predictable tool performance. Users can rely on interchangeability between products from different manufacturers that meet this industrial standard.
Cooling is strongly recommended for diameters above 15 mm to achieve optimal machining results. Proper lubrication significantly extends drill bit life and improves hole surface finish and dimensional accuracy.
For soft structural steels, we recommend a range of 265-360 rpm; for harder steels, 225-300 rpm. Correct rotational speeds ensure efficient cutting and long tool life.
Product accessories
Metal drill bit 16.5 long 235/154 HSS DIN 340
Reference: 0266 In stock > 10 items
€10.79
€13.27 brutto
Tapered countersink 20.5/90 DIN 335 C HSS
Reference: 11248 In stock > 10 items
€14.47
€17.80 brutto
17 mm HSS DIN 338 fluted metal drill bit
Reference: 0000012324 In stock < 10 items
€6.84
€8.42 brutto
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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