Diamond Knurl Rollerball Pen Kits - Masterpiece Components

Turn a pen that draws the hand in before the eye even registers what's different — the Diamond Knurl Rollerball Pen Kit wraps a Jr-size rollerball platform in precision diamond-knurl textured hardware and a decorative knurled center band that gives every finished piece a machined, custom look. The postable cap keeps the pen balanced in hand, while the Schmidt 888 fine rollerball refill delivers a smooth, consistent line from the first stroke.

Built on the compact Jr Gentleman II platform, this kit uses two tubes for a clean, two-piece barrel — easy to turn, easy to assemble, and a great choice for both newer turners and experienced pen makers looking to add a distinctive rollerball to their lineup.

Features

• Diamond knurl texture on the barrel hardware adds premium machined depth and a confident tactile grip

• Decorative knurled center band creates a bold visual centerpiece that elevates the entire pen

• Postable cap for a longer, balanced writing position

• Schmidt 888 fine rollerball refill included — smooth, reliable, and widely available for replacements

• Jr Gentleman II platform — two-tube design, compact finished size of approx. 9/16" × 5-1/4"

• Brass tubes (1 set of 2) included for lasting structural integrity

Instructions

Diamond Knurl / Jr II Rollerball Pen Kit Instructions

Tooling Requirements

• Drill Bits: 10.5mm & 12.5mm

• Bushings: Bushings — Jr II Series

Mix & Match:

Combine the Diamond Knurl Rollerball Pen Kit with any other single pen kits to unlock the highest discount levels!

Kit Includes

• Pen components (blank not included)

• Brass tubes (1 set of 2)

• Schmidt 888 fine rollerball refill

Specifications

• Style: Rollerball — postable cap

• Platform: Jr Gentleman II (two-tube design)

• Finished Size: Approx. 9/16" × 5-1/4"

• Drill Sizes: 10.5mm & 12.5mm

• Refill Type: Schmidt 888 Fine Rollerball (included)

Why Turners Love This Kit

• The diamond knurl hardware has a machined, intentional quality that makes even a simple wood blank look like a considered pairing — people pick it up just to feel the texture

• The Jr Gentleman II platform keeps the finished pen compact and well-proportioned, making it a great fit for smaller blanks and figure-rich wood species that shine in a shorter form

• Two-tube construction is straightforward to turn and assemble — clean results even for first-time rollerball builders, with the Schmidt 888 ready to write right out of the box

• A rollerball with this level of hardware detail stands out at any craft show — the knurl texture makes it a natural conversation starter and a reliable premium-price gift pen