Kirch Design K1

THE K1 THE STRAIGHTEST PUTTER EVER MADE.

Center-bore shafted. Face-angle balanced with zero torque.
Machined from aerospace-grade alloy.

Custom built to order · 2–3 week build time

Build your K1 Explore in 3D

Three-quarter view of the K1 putter head rendered from its design model

Scroll to exploreK1 / 01

01 / The putter

K / D

THE K1
IN 3D.

Rotate the head, inspect the face and sole, or switch to X-ray to see the geometry inside.

KIRCH DESIGN K1$400

THE FLAGSHIP / HEAD STUDY

Kirch Design K1.

Center-bore shafted and precision machined from aerospace-grade alloy.

DRAG TO ROTATE · CTRL + SCROLL TO ZOOM

Loading the K1 model.

Sweep the light

HEEL TO TOE3.500 in

FRONT TO BACK3.739 in

HEAD HEIGHT1.000 in

Loading the interactive model.

Explore the current head design. Shaft and grip not shown. Measurements reflect the design model; finish is illustrative.

02 / In the details

THE K1
IN DETAIL.

FACE-ANGLE BALANCED

ZERO TORQUE.

The K1 is designed to resist face twist through the stroke, helping you hold your aim and start the ball on your intended line.

Rear-weighted head.

Weight positioned toward the rear is designed to increase resistance to twisting through the stroke and impact, helping the head stay stable when contact is slightly off center.

Vertically convex face. Sharp horizontal grooves.

The face curves subtly from top to bottom to encourage centered contact. Sharp horizontal grooves are designed to promote forward rotation as the ball leaves the face, helping it settle into an end-over-end roll.

Rounded sole. A freer stroke.

The convex sole reduces contact with the turf to help limit bottom drag and keep your stroke moving freely.

The golfer’s overhead view of the K1 on a putting green, with its black shaft toward the viewer and a golf ball centered at address — Straight back. Straight through. Stroke illustration.

Shaft position: Center-bore shafted
Precision machined: Aerospace-grade alloy
Forward press shaft lean: 1°
Custom lie angle: 65°–75°

Vertically convex face.

The face curves subtly from top to bottom to encourage centered contact. Sharp horizontal grooves are designed to help the ball transition into a smooth, end-over-end roll.

Long alignment line.

The long, black alignment line creates a clear visual path toward your target.

Convex sole.

A slightly convex sole reduces contact with the turf to minimize drag and help your stroke move freely.

03 / Our story

THE K1
IN THE MAKING.

There are so many great putters on the market. From the rise of lie-angle-balanced, zero-torque designs to decades of mallet putters, there’s a lot to admire. But I still couldn’t find one with everything I wanted.

Eventually, I realized that if I wanted that putter, I’d have to make it myself.

I’m a software engineer by trade, and I brought that same problem-solving mindset to designing a putter. I put my head down and taught myself 3D CAD. I designed prototypes on my computer, sent the files to machine shops, and had the heads machined from aluminum. Then I’d fit a shaft and grip and test each one.

Each prototype gave me something to learn from and improve. I kept refining the design until it became the K1. It’s the best putter I’ve ever used, by far. And I want you to experience it too.

Build your K1

KIRCH DESIGN

THE K1
MAKE IT YOURS.

Custom built to order. Current build lead time: 2–3 weeks.

Product information

COMMON
QUESTIONS.

What is the Kirch Design K1?

The K1 is our $400 flagship putter, precision machined from aerospace-grade alloy. It is center-bore shafted, with a face-angle-balanced, zero-torque design that helps maintain your aim through the stroke. Explore its rear-weighted head, vertically convex face with sharp horizontal grooves, curved sole, and long black alignment line in the design explorer.

When can I get one?

Every K1 is custom built to order with your chosen shaft length, lie angle, and grip. The current build lead time is 2–3 weeks; shipping transit time is additional. You can configure your build and preview checkout now. Payments and order placement are not yet enabled.

What are the dimensions and fitting options?

The head measures 3.500 inches heel to toe, 3.739 inches front to back, and 1.000 inch tall. The K1 has 1° of forward press shaft lean, with a lie angle that can be customized from 65° to 75°. The head shown in the studio has a 72° lie angle.