Sigma Series 4 “UP” – 70 cm Cutting Length, Pulling Incision
Sigma Series 4 “UP” – 70 cm Cutting Length, Pulling Incision
The Sigma Series 4 UP 4BU is a manual tile cutter with a 27.6 in. (70 cm) cutting length that scores on the pull stroke for cutting ceramic and porcelain tile.
Sigma calls this the “UP” traction line and describes the pulling incision as quick and easy, with a handle shaped specifically for pulling. Diagonal capacity is 19.5 in. (49.5 cm) — the largest of the three Sigma machines whose diagonals are published.
Key Features
- 27.6 in. (70 cm) cutting length for straight cuts
- 19.5 in. (49.5 cm) diagonal capacity published by Sigma
- Pulling incision with a handle shaped for the pull stroke
- Series 4 chassis, shared with the pushing-action NEX models
- Unpowered: no cord, no water and no slurry on a finished floor
Who Is This For?
Tile setters who want the longer Series 4 rail with a pulling action — the more familiar motion for anyone coming off a traditional rail cutter — on ceramic and porcelain up to 27.6 in.
Frequently Asked Questions
How long a cut will the Sigma 4BU make?
Sigma publishes a 70 cm cutting length, which is 27.6 in., and a 49.5 cm (19.5 in.) diagonal capacity.
What is the difference between the UP and NEX models?
They are the two actions of the same Sigma Series 4 chassis: UP models score on the pull, NEX models score on the push. Sigma recommends the pushing action for rough, thick and large tiles, so the Series 4 NEX 4BN is the alternative where the score has to be deep.
Is 27.6 in. enough for large-format tile?
It covers tile up to 27.6 in. (70 cm) in a single pass, which includes 24 in. squares but not 36 in. or 48 in. planks. Within the same pulling range the 4CU cuts 33 in. (84 cm) and the 4DU cuts 40.5 in. (103 cm).
Can a manual tile cutter make curved or L-shaped cuts?
No. A manual score-and-snap cutter makes straight and diagonal cuts only, because the tile breaks along a single scored line. Curves, L-notches and holes need a diamond blade on an angle grinder or a wet saw — the SLAYTEC Wasteland Ripper Diamond Tile Blade covers that work.