Cylindrical twist drill bit Fervi ST1A09.25

What it is

The Fervi ST1A09.25 is a Ø 9.25 mm twist drill bit designed for professional drilling in non-standard diameters. The flute ensures orderly chip flow, helping to keep the cutting zone clean even in deeper holes, while the 118° point angle offers a good compromise between centring and penetration speed. A hardness of 700-740 HV gives the cutting edge wear resistance during repeated work cycles.

A metal drill bit is an HSS or cobalt twist drill, with a straight or taper shank, for drilling steel, non-ferrous metals and plastics.

What it is for

Used for drilling steel, stainless steel and aluminium, on a pillar drill or with a hand-held drill and in workshop machining of steel, aluminium and alloy parts.

How to use it

Clamp the workpiece in a vice, mark the centre and set the speed for the diameter and material: low for hard steels and large diameters, higher for aluminium and plastic. Lubricate with cutting oil on steel; on plastic, reduce the pressure as the bit breaks through to avoid chipping. Insert taper-shank drills into the pillar drill's spindle taper and remove them with a drift.

Where it is used

• Mechanical engineering industry
• Mechanical workshops

Technical data

• Diameter (mm): 9,25
• Point angle: 118°
• Hardness: 700-740 HV
• Standard: DIN 338

Who it is for

Designed for metal fabricators, industrial maintenance technicians and mechanics.

Related products

• Cylindrical twist drill bit Fervi ST1A09.50
• Cylindrical twist drill bit Fervi ST1A09
• Chuck with rack-and-pinion clamping Fervi M081/13 — from the category Pillar Drills
• Precision vice Fervi M028/150/200 — from the category Vices and Clamps
• Combined milling cutter chuck Fervi 22/D40 — from the category Turning, Milling and Threading Tools
• Browse the whole category: Professional Drill Bits for Metal and Plastic

Before you order

In your request, please state the diameter and the quantities required, so we can give you the right quotation first time.

For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.