Dormer 1/8 x 5/16in HSS Centre Drill

Introduction

Centre drill is recommended for starting a precise hole in the end of a shaft so it can be securely held prior to machining. British Standard 328. The two drilling ends give increased productivity per tool. Suitable for drilling many materials.

Brand :Dormer

Cutting Diameter (in) :1/8

Manufacturer Part Number :A225BS4

Material :HSS

Features & Benefits : Uncoated finish
High speed steel tool material
BS 328 standard
1xD usable tool depth to diameter ratio
60 countersink centre drill
Cylindrical shank/straight shank
Right hand rotation/cutting
120 drill point
Series A225

Flute Length (in) :3/16 – 5/32

Body Diameter (in) :5/16

Overall Length (in) :2-1/4

Pilot Diameter (in) :1/8

BS Number :4