450mm Diamond Core Drill Bit Wet 1¼" UNC for SDS Plus, Ø 51-89mm Diamond Hole Saw for Concrete, Masonry, Brick(56x450mm)

- Package: This set includes 1 x diamond core drill bit with 1¼" UNC internal thread. SDS adapter is not included – purchase separately to fit SDS‑PLUS rotary hammers. Important: Only use rotary mode, never hammer or impact mode
- Versatile Uses: Ideal for drilling concrete, reinforced concrete, masonry and stone. Ideal for air‑conditioning openings, wall pipeline holes, street lamp base holes, and general engineering drilling. Matches manual core drills and drilling rigs with standard 1¼" UNC inner thread, also works with SDS‑PLUS rotary hammers (adapter required) under rotary mode only
- Simple Operation: Designed for wet drilling. Start at vertical position and continue to dig deep. Tilt the drill to mark the surface first, then level it to carry out smoothly drilling. Ideal for plumbers, electricians, builders, contractors and DIY enthusiasts
- Efficient & Smoothly Drilling: High‑cobalt wavy diamond teeth and premium diamond grits deliver sharp cutting and extended service life. Chip removal holes, highly regular sawteeth and concentric design prevent deviation. Spiral hollow slots accelerate dust extraction and prevent core jamming
- Notes: Available size: 51mm, 56mm, 63mm, 66mm, 71mm, 76mm, 83mm, 89mm; total length: 450mm; thread: 1¼" UNC internal thread; Maximum cutting depth: 300mm. For wet drilling, ensure water supply is used continuously to cool the bit and extend service life. Verify device compatibility prior to ordering