Description
Q736-1122 Tapered Button Bit — 11° Taper
The Q736-1122 is an 11°-taper button bit with spherical tungsten carbide buttons and a 36 mm head diameter. Its drop-center face design delivers fast penetration and reliable flushing in medium-to-hard rock, making it a workhorse bit for hand-held pneumatic rock drills such as the YT24, YT27 and YT28.
Specification
- Model: Q736-1122
- Head diameter: 36 mm
- Taper angle: 11°
- Button shape: spherical tungsten carbide buttons
- Face design: drop center
- Body material: heat-treated alloy steel
- Connection: 11° tapered socket for tapered drill rods
- Compatible rock drills: YT24, YT27, YT28 and similar hand-held / air-leg drills
- Applications: blast hole drilling, mining, tunneling, quarrying
Features
- Premium spherical tungsten carbide buttons resist wear and chipping in abrasive, medium-to-hard rock.
- Drop-center face improves cuttings evacuation and keeps the bit tracking straight, increasing penetration rates.
- Forged, heat-treated alloy steel body for high impact strength and long service life.
- Precision-machined 11° taper socket for a secure friction fit on tapered drill rods.
- Optimized flushing channels clear drill cuttings quickly and reduce button wear.
How to read the model number
Q736-1122 follows the RDT coding system: Q = spherical (ball) button bit, 7 = 7 carbide buttons, 36 = 36 mm head diameter, 11 = 11° taper angle, 22 = 22 mm bore diameter.
Frequently asked questions
What does the model number Q736-1122 mean?
In this series, Q stands for a spherical button bit, 7 is the number of tungsten carbide buttons, 36 is the head diameter in millimetres, 11 is the taper angle in degrees, and 22 is the bore diameter in millimetres. The bit fits any drill rod with a matching 11° taper.
Which taper angle should I choose, 11° or 12°?
Match the taper angle to your existing drill rods. The 11° taper is the most common standard for hand-held drills; the 12° taper gives a slightly tighter fit for harder rock. If unsure, send us a photo of your rod shank and we will match it.
How do I get a quotation?
Contact us with the model number, quantity and destination port — we reply within 24 hours on business days.
Reviews
There are no reviews yet.