9.1mm (23/64'') HSS Drill Bit

9.1mm HSS drill bit for pen turning

A 9.1mm HSS drill bit for drilling pen blanks and other turning blanks to take the tube of your kit. It is made from high speed steel (HSS), which holds its edge well with repeated use.

Specification

• Size: 9.1mm
• Equivalent: approx 0.358in
• Type: HSS twist
• Material: high speed steel (HSS)
• Point: split point, 118 degrees
• Shank: straight shank, rolled HSS
• Suitable materials: steel, plastic, wood and similar materials

Pen kits that use this drill size

These kits in our range list a 9.1mm drill in their instructions or description:

• Jazz Bolt Pen Kit - Click Action
• Sagiters Twist - Antique Bronze
• Sagiters Twist - Antique Silver Pen Kit
• Sagiters Twist - Gunmetal
• Aero Twist Pen Kit - Gold & Chrome

About HSS twist drills

HSS twist drill bits are a good general-purpose choice for drilling wood, acrylic and resin pen blanks. Keep the bit sharp, and withdraw it regularly to clear the waste from the flutes.

Drilling a pen blank

• Check the drill size in your pen kit instructions, as tube diameters vary between kits.
• Hold the blank securely in a pen blank drilling vice or a chuck on the lathe, so the hole runs straight down the centre.
• Drill a little deeper than the tube length, glue the tube in place, then square the ends before turning.

You may also need

Browse our drill bits, pen kit bushings, pen turning kits and pen making accessories.

Safety

Wear eye protection when drilling, keep hands clear of the bit, and make sure the work is clamped or held securely.

More from the range

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Returns accepted within 30 days in original condition & unopened packaging*