Kennametal Carbide Deep Hole Drills

HP Solid Carbide Deep-Hole Drills for Steel, Cast Iron, and Non-Ferrous Materials

Primary Application

B27_HPG Series Solid Carbide Drills are the optimum platform for drilling holes up to 30 x D in steel, cast iron, and stainless steel materials. Drill deep holes up to 4x faster than conventional HSS and gun drills. Application of MQL is possible.

The B27_HPS in the new uncoated KN25™ grade now offers the same advantages for drilling in non-ferrous materials such as aluminium, copper, and brass. These series are now available from 2,3–16mm (.09–.63") diameter and in lengths from 15–30 x D.

Features and Benefits

HP Drill-Point Design

Low thrust.
Excellent centring capabilities.
Highest possible feed rates.

Four-Margin Lands

Improves hole straightness.
Improves hole alignment when drilling through cross holes.

Unique Flute Design

Drastically improved chip evacuation.
Better hole surface quality.

Customisation

Intermediate diameters available as semi-standards.
Length variations -including even longer versions -available as engineered solutions.

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B274 KCPK20

Product Code	D1	L	L3	L4 Max	L5	D
B274Z03000HPG KCPK20 »	3.00	131.00	97.00	90.00	0.55	3.00
B274Z03175HPG KCPK20 »	3.18	165.00	115.00	106.00	0.59	4.00
B274Z03500HPG KCPK20 »	3.50	165.00	121.00	112.00	0.65	4.00
B274Z03970HPG KCPK20 »	3.97	165.00	129.00	119.00	0.73	4.00

B274 KN25

Product Code	D1	L	L3	L4 Max	L5	D
B274Z03000HPS KN25 »	3.00	131.00	97.00	90.00	0.55	3.00
B274Z03175HPS KN25 »	3.18	165.00	115.00	106.00	0.59	4.00
B274Z03500HPS KN25 »	3.50	165.00	121.00	112.00	0.65	4.00