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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B272 KCPK20

Product Code	D1	D1 Wire Size	L	L3	L4 Max	L5	D
B272Z04000HPG KCPK20 »	4.00		125.00	90.00	80.00	0.70	4.00
B272Z04500HPG KCPK20 »	4.50		149.00	108.00	97.00	0.80	5.00
B272Z04623HPG KCPK20 »	4.62	14.00	149.00	109.00	98.00	0.90	5.00
B272Z04763HPG KCPK20 »	4.76		149.00	110.00	99.00	0.90	5.00

B272 KN25

Product Code	D1	L	L3	L4 Max	L5	D
B272Z04000HPS KN25 »	4.00	125.00	90.00	80.00	0.70	4.00
B272Z04500HPS KN25 »	4.50	149.00	108.00	97.00	0.80	5.00
B272Z04763HPS KN25 »	4.76	149.00	110.00	99.00	0.90	5.00