Makita 7104L 6-1/8″ Chain Mortiser, Corded 10.5A

The Makita 7104L Chain Mortiser is a purpose-built timber framing tool designed to cut clean, accurate mortises and lap joints in large beams and logs. With a powerful 10.5A motor spinning at 3,200 RPM, it delivers fast material removal while maintaining control and precision. The tool’s 6-1/8″ maximum depth of cut and up to 5-1/8″ longitudinal width make it a solid choice for structural joinery in log home building, heavy timber construction, and custom woodworking where deep, wide mortises are common. A large adjustable vise and a base that mounts on beams up to 12″ help the tool lock onto work securely, keeping cuts steady across long passes.

A quick horizontal chain lever lets you widen holes without re-setting the machine, saving setup time on repetitive joints. Low vibration (2.5 m/s²) and manageable noise levels (90 dB[A]) support longer work sessions with less fatigue, while the 38.1 lb build provides stability on the beam. Whether you’re notching posts, opening mortises for tenons, or cutting lap joints, the 7104L offers the capacity and accuracy needed for professional timber framing and log building jobs.

Makita Corded 6-1/8″ Chain Mortiser At a Glance

• 10.5A Motor (3,200 RPM): Delivers fast cutting for deep, wide mortises.
• 6-1/8″ Max Depth: Handles structural joinery in heavy timber and log work.
• 5-1/8″ Lap Joint Capacity: Cuts broad, flat joints for strong beam connections.
• Quick Horizontal Chain Lever: Widens holes quickly without re-mounting the tool.
• Base Fits Up to 12″ Beams: Securely mounts on large timbers for stable cuts.
• Large Adjustable Vise: Grips logs and beams firmly to keep cuts accurate.
• Low Vibration 2.5 m/s²: Reduces user fatigue over long sessions.
• Corded 120V Power: Consistent performance with no downtime for charging.

Markets

• Timber Framing Contractors: Reliable capacity for mortises and lap joints in structural beams.
• Log Home Builders: Cuts clean notches and pockets in large round or square timbers.
• Heavy Carpentry & Timber Shops: Suited for production joinery on custom builds.
• Parks & Municipal Structures: Useful for bridges, shelters, and outdoor timber facilities.
• Restoration & Heritage Work: Precise cutting for repairing traditional mortise-and-tenon joinery.
• Education & Trade Programs: Demonstrates professional timber framing methods and tooling.

Professionals in these markets benefit from the 7104L’s combination of cutting depth, width, and secure on-beam mounting. Crews can set up on a 12″ beam, clamp down with the adjustable vise, and cut repeatable mortises at speed, which keeps projects moving on tight schedules. The quick chain lever helps widen mortises without extra layout time, while the corded 10.5A motor provides steady performance for long days in the shop or on site. For restoration teams and custom builders, the clean, accurate cuts help preserve fit and alignment across complex frames, reducing chisel cleanup and keeping joints tight.

Makita 7104L 6-1/8″ Chain Mortiser, Corded 10.5A Features

• Cuts lap joints up to 5-1/8″
• Notches or cuts holes in thick wood stock quickly, cleanly and accurately
• Quick horizontal chain lever for widening holes
• Base mounts onto a max. 12″ beam
• Large adjustable vise for attaching firmly onto logs

Makita 7104L 6-1/8″ Chain Mortiser, Corded 10.5A Includes

• (1) 5/8″ Cutting Chain (A-16570)
• (1) Chain Bar Assy (133571-3)
• (1) Wrench 13-17 (781204-0)
• (1) Oil Supply (199897-3)

Makita 7104L 6-1/8″ Chain Mortiser, Corded 10.5A Specifications

• Max Hole Width (Longitudinal): 5-1/8″ (130 mm)
• Max Hole Width (Transverse): 1-1/4″ (31.5 mm)
• Max Hole Depth: 6-1/8″ (155 mm)
• No-Load Speed: 3,200 RPM
• Amperage (120V): 10.5 A
• Vibration Level: 2.5 m/s²
• Noise Level: 90 dB(A)
• Dimensions (L x W x H): 20-1/8″ x 11-3/4″ x 20-1/4″ (512 x 298 x 513 mm)
• Net Weight: 38.1 lbs (17.3 kg)
• Base Beam Capacity: Mounts on up to 12″ beams
• Standard Chain Size: 5/8″ (included)
• Power Source: Corded 120V AC
• Shipping Dimensions (L x W x H): 23.62″ x 14.96″ x 19.88″
• Shipping Weight: 48.06 lbs

Makita 7104L 6-1/8″ Chain Mortiser, Corded 10.5A Warranty

• Makita’s 1 Year Limited Warranty

Why Customers Choose the Makita 6-1/8″ Chain Mortiser, Corded 10.5A

Builders choose this corded chain mortiser for dependable performance on structural joinery. The 10.5-amp motor and 3,200 RPM speed keep cuts moving, while the 6-1/8″ depth and 5-1/8″ width handle the large mortises and lap joints common in timber framing. The on-beam base and adjustable vise help hold work steady, which leads to cleaner mortises and less chisel cleanup.

For timber framing and log home building, a dedicated chain mortiser saves time compared to drilling and chiseling by hand. With the ability to mount on beams up to 12″, widen holes quickly with the chain lever, and work all day on corded power, the 7104L offers the accuracy, speed, and capacity that crews need for consistent results on big timber projects.