Q1076T38 Thread Button Bit, 76 mm, T38 Thread

Description

Q1076T38 Thread Button Bit — 76 mm, T38 Thread

The Q1076T38 is a T38 threaded button bit with a 76 mm head diameter and ten spherical tungsten carbide buttons, built for drifting, tunneling and production drilling with hydraulic drill jumbos. The convex face carries six flushing grooves that clear cuttings quickly and keep the hole straight, while the T38 thread connects directly to standard T38 drifting rods and shank adapters.

The bit body is machined from heat-treated alloy steel with carbide buttons pressed into precision-drilled holes — the combination that holds up in medium-hard to hard, abrasive rock where cheaper bits round off and lose gauge.

Specification

• Model: Q1076T38
• Head diameter: 76 mm
• Button count: 10 spherical tungsten carbide buttons
• Thread connection: T38 (also available in R32, R38, T45, T51)
• Button shape: spherical — recommended for hard, abrasive rock (ballistic optional)
• Face design: convex face with six flushing grooves
• Body material: heat-treated alloy steel
• Inserts: tungsten carbide
• Compatible rigs: Atlas Copco, Sandvik and other hydraulic drill jumbos running T38 rods
• Applications: drifting, tunneling, bench drilling, production drilling, underground mining

Features

• Ten spherical carbide buttons spread across a convex face give even gauge wear and a long service life in hard rock.
• Six deep flushing grooves clear cuttings fast, which keeps the hole straight and reduces regrinding of the bit.
• Precision-machined T38 thread seats firmly against T38 rods with minimal play and thread wear.
• Forged, heat-treated alloy steel body resists cracking under high impact energy from hydraulic hammers.
• Carbide buttons hot-pressed into precision-drilled holes stay tight after thousands of metres of drilling.

How to read the model number

Q1076T38 follows the RDT coding system: Q = spherical (ball) button bit, 10 = 10 carbide buttons, 76 = 76 mm head diameter, T38 = T38 thread connection.

Frequently asked questions

What does Q1076T38 mean?

Q is a spherical button bit, 10 is the number of tungsten carbide buttons, 76 is the head diameter in millimetres, and T38 is the thread that fits standard T38 drifting rods.

Which rigs and rods does this bit fit?

Any hydraulic drill jumbo running T38 threaded rods — Atlas Copco, Sandvik and comparable rigs used in tunneling and underground drifting. Send us a photo of your rod end if you want us to confirm the match.

What rock is a 76 mm T38 button bit used for?

Medium-hard to hard, abrasive rock: granite, limestone, sandstone and similar formations in tunnel drifting, bench drilling and production drilling. Spherical buttons are the right choice for abrasive rock; ballistic inserts are available if you need faster penetration in softer ground.

Can I order other diameters, threads or insert shapes?

Yes. Diameters from 45 mm to 127 mm, threads from R25 to T51, spherical or ballistic inserts, and OEM markings are all made to order.

Related rock drilling tools

• Q945-R32 thread button bit — R32, 45 mm
• Q651-R32 anchor drill bit — R32, 51 mm
• Q976-R32 self-drilling anchor bit — R32, 76 mm
• Q743-725 tapered button bit — 7°, 43 mm