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GARANT Master Steel DEEP solid carbide deep hole drill, plain shank DIN 6535 HA 20×D, TiAlN, ⌀ DC: 12mm

Article no.: 123890 12

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⌀ DC (mm) Unit price incl. VAT
  • Tool material: Solid carbide
  • Standard: Manufacturer’s standard
  • Version: 20×D
  • Tolerance nominal ⌀: j6
  • Number of cutting edges Z: 2

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Product details

Technical Data

Series Master Steel
Nominal ⌀ DC 12 mm
Coating TiAlN
Tool material Solid carbide
Standard Manufacturer’s standard
Version 20×D
Tolerance nominal ⌀ j6
Number of cutting edges Z 2
Point angle 138 degrees
recommended maximum drilling depth L2 252 mm
Shank DIN 6535 HA to h6
Through-coolant yes, with 40 bar
Machining strategy HPC
Pilot drill required yes, pilot drill
Flute length Lc 270 mm
Overall length L 319 mm
Shank ⌀ Ds 12 mm
Feed f in steel < 900 N/mm2 0.21 mm/rev.
Colour ring green
Type of product Jobber drill

Identification numbers & Classifications

Article number 123890 12
EAN / GTIN 4062406268343
Manufacturer number 123890 12

Application Table

Steel < 500 N/mm²
P
120
Steel < 750 N/mm²
P
110
Steel < 900 N/mm²
P
105
Steel < 1100 N/mm²
P
105
Steel < 1400 N/mm²
P
85
INOX < 900 N/mm²
M
65
INOX > 900 N/mm²
M
60
Ti > 850 N/mm²
S
25
GG(G)
K
110
Uni
 
wet maximum
 
wet minimum
 

Description

Version:

Excellent chip evacuation due to the unequal helical pitch of the flutes, guide rings and additional guide chamfers for very high precision when drilling. Maximum process reliability due to exactly matching tools within the overall system. Drilling up to the maximum depth without a pilot drill. Significantly increased tool stability due to the substantially strengthened core. Increased metal removal rates and outstanding tool lives lead to an economical high-end drilling process.

Note:

Flute length LC = L2 + 1.5 × DC.
For process reliability when using the 16×D deep-hole drill, initial centre drilling with No. 121068121121 or a pilot hole of at least 4×D with pilot drill No. 122736 is necessary. For deep holes greater than 20×D, a pilot hole to the maximum drilling depth with pilot drill No. 122736 is absolutely essential. The generation of a pilot hole improves process reliability. The specified L/D ratio gives the minimum achievable depth of hole with the respective deep-hole drill.

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