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.

Click through to the products to see videos of them in action.

B271 KCPK20

Product Code	D1	L	L3	L4 Max	L5	D
B271Z07000HPG KCPK20 »	7.00	162.00	121.00	105.00	1.30	7.00
B271Z07145HPG KCPK20 »	7.15	181.00	135.00	118.00	1.30	8.00
B271Z07500HPG KCPK20 »	7.50	181.00	136.00	119.00	1.40	8.00
B271Z07541HPG KCPK20 »	7.54	181.00	136.00	119.00	1.40	8.00
B271Z07938HPG KCPK20 »	7.94	181.00	138.00	120.00	1.50	8.00

B271 K25

Product Code	D1	L	L3	L4 Max	L5	D
B271Z07000HPS KN25 »	7.00	162.00	121.00	105.00	1.30	7.00
B271Z07145HPS KN25 »	7.15	181.00	135.00	118.00	1.30	8.00
B271Z07500HPS KN25 »	7.50	181.00	136.00	119.00	1.40	8.00

B272 KCPK20

Product Code	D1	L	L3	L4 Max	L5	D
B272Z07000HPG KCPK20 »	7.00	197.00	156.00	140.00	1.30	7.00
B272Z07145HPG KCPK20 »	7.15	221.00	171.00	154.00	1.30	8.00
B272Z07500HPG KCPK20 »	7.50	221.00	174.00	157.00	1.40	8.00
B272Z07541HPG KCPK20 »	7.54	221.00	174.00	157.00	1.40	8.00
B272Z07938HPG KCPK20 »	7.94	221.00	177.00	159.00	1.50	8.00

B272 KN25

Product Code	D1	L	L3	L4 Max	L5	D
B272Z07000HPS KN25 »	7.00	197.00	156.00	140.00	1.30	7.00
B272Z07145HPS KN25 »	7.15	221.00	171.00	154.00	1.30	8.00
B272Z07500HPS KN25 »	7.50	221.00	174.00	157.00	1.40	8.00

B273 KCPK20

Product Code	D1	L	L3	L4 Max	L5	D
B273Z07000HPG KCPK20 »	7.00	232.00	191.00	175.00	1.00	7.00

B273 KN25

Product Code	D1	L	L3	L4 Max	L5	D
B273Z07000HPS KN25 »	7.00	232.00	191.00	175.00	1.00	7.00

B274 KCPK20

Product Code	D1	L	L3	L4 Max	L5	D
B274Z07000HPG KCPK20 »	7.00	267.00	226.00	210.00	1.29	7.00
B274Z07938HPG KCPK20 »	7.94	301.00	257.00	239.00	1.47	8.00

B274 KN25

Product Code	D1	L	L3	L4 Max	L5	D
B274Z07000HPS KN25 »	7.00	267.00	226.00	210.00	1.29	7.00