Description
Tapering flute form with a length of approximately 3x nominal Dia..
Very sturdy due to strong core and radius heel of flutes.
Easy, peeling cut by spiral flutes; number of flutes varies according to the size.

Product Data
Product type: Bridge reamer
Tool material: HSS
DIN: 311
Tolerance: k11
Point angle: 25deg
Shank type: Morse taper shank
Flute form: Tapering flute form, approximately 3x nominal Dia.
Nominal Dia. Dc: 20 mm
Minor Dia.: 13.8 mm
Lc: 155 mm
L1: 172 mm
L: 271 mm
Number of cutting edges Z: 4
Morse taper: MT 3
Feed (f), Steel <500 N: 0.25 mm/rev

Cutting Data
Alu plastics: 20
Alu: 20
Steel <500 N: 15
Steel <750 N: 10
Steel <900 N: 7
Cu: 13

Application
Particularly useful for the installation of components, for reaming offset holes or enlarging rivet holes.
Bridge reamers are used on pneumatic hand-held drills in boiler construction.
Suitable for reaming undersized or offset holes.