NUMA Series Bit

Advantages and characteristics

1. Strict supplier quality management, the use of high-quality steel and hard alloy, warhead service life is long.

2. Using high-quality raw materials and advanced processing techniques for superior performance.

3. The head shape distribution is scientific and diverse, which can complete the construction work of the whole terrain and all directions.

4. Manufacturers direct sales, according to your actual work situation to provide you with a more suitable bit structure.

5. 20 years of profound production experience, ensuring reliable quality.Exported to over 40 countries, highly recognized internationally.

6. A customer repurchase rate of up to 98%, a trusted choice.

钻头规格 Specification		头部形状 Head shap	钻头头部直径(mm) Head Diamete	尾柄长度 Shank tenath	花键数 Spline	排气孔数量 Port holes	齿形 Button Type	边齿(mm) Gauge Buttons	芯齿(mm) Front buttons	重量(Kg) Weight
	NUMA100	凸面 Convex Face	254	375	10	2	球齿 Domed	12×Ø19	8×Ø18+19×Ø16	89
		凸面 Convex Face	275	375	10	2	球齿 Domed	12×Ø19	8×Ø18+20×Ø16	93.5
		凸面 Convex Face	305	375	10	3	球齿 Domed	15×Ø19	27×Ø18+9×Ø16	103.5
		凸面 Convex Face	325	375	10	3	球齿 Domed	15×Ø19	27×Ø18+9×Ø16	112
		凸面 Convex Face	350	375	10	4	球齿 Domed	16×Ø19	32×Ø18+14×Ø16	121
		凸面 Convex Face	400	375	10	4	球齿 Domed	16×Ø19	40×Ø18+25×Ø16	146.5

钻头规格 Specification		头部形状 Head shap	钻头头部直径(mm) Head Diamete	尾柄长度 Shank tenath	花键数 Spline	排气孔数量 Port holes	齿形 Button Type	边齿(mm) Gauge Buttons	芯齿(mm) Front buttons	重量(Kg) Weight
	NUMA100A	凸面 Convex Face	254	375	10	2	球齿 Domed	12×Ø19	8×Ø18+19×Ø16	89
		凸面 Convex Face	275	375	10	2	球齿 Domed	12×Ø19	8×Ø18+20×Ø16	93.5
		凸面 Convex Face	305	375	10	3	球齿 Domed	15×Ø19	27×Ø18+9×Ø16	103.5
		凸面 Convex Face	325	375	10	3	球齿 Domed	15×Ø19	27×Ø18+9×Ø16	112
		凸面 Convex Face	350	375	10	4	球齿 Domed	16×Ø19	32×Ø18+14×Ø16	121
		凸面 Convex Face	400	375	10	4	球齿 Domed	16×Ø19	40×Ø18+25×Ø16	146.5

钻头规格 Specification		头部形状 Head shap	钻头头部直径(mm) Head Diamete	尾柄长度 Shank tenath	花键数 Spline	排气孔数量 Port holes	齿形 Button Type	边齿(mm) Gauge Buttons	芯齿(mm) Front buttons	重量(Kg) Weight
	N125	凸面 Convex Face	305	491	10	3	球齿 Domed	15×Ø20	27×Ø18+9×Ø16	175.5
		凸面 Convex Face	311	491	10	3	球齿 Domed	15×Ø20	27×Ø18+9×Ø16	176
		凸面 Convex Face	325	491	10	3	球齿 Domed	15×Ø20	27×Ø18+9×Ø16	185
		凸面 Convex Face	350	491	10	4	球齿 Domed	16×Ø20	32×Ø18+13×Ø16	200
		凸面 Convex Face	381	491	10	4	球齿 Domed	16×Ø20	36×Ø18+18×Ø16	213
		凸面 Convex Face	400	491	10	4	球齿 Domed	16×Ø20	40×Ø18+28×Ø16	228.5
		凸面 Convex Face	445	491	10	4	球齿 Domed	20×Ø20	48×Ø18+25×Ø16	265.5
		凸面 Convex Face	500	491	10	4	球齿 Domed	24×Ø20	90×Ø18	322

How to order ?

1.Contact Us:
Click the WhatsApp icon to chat.

2.Confirm Details:
Verify specs, quantity, price via WhatsApp.

3.Agree on Terms:
Clarify FOB/CIF & payment method.

4.Review Documents:
Check proforma invoice & contract.

5.Make Deposit:
Pay to start production.

6.Finalize Payment & Ship:
Pay balance, we'll arrange shipment.

7.Clearance Docs:

We'll provide necessary documents.

Follow these steps & reach out via WhatsApp for any questions. We're here to help!