
No online payment. Our export team confirms final FOB price, packing and freight within 24 hours.
Power Tool Accessories
Impact Screwdriver Bits
Key Attributes
| Brand Name | EF | Model Number | SCREWDRIVER_BITS |
| Place of Origin | Yongkang, Zhejiang, China | Material | 25 / 50 / 90 mm, 1/4" hex |
| Standard | ANSI / DIN | OEM | Accepted, private label from 1,000 pcs |
| Sample | Free sample, courier collect | Lead Time | 15-25 days after deposit |
| Certification | ISO 9001; SGS / TÜV test reports per shipment | Supply Capacity | 500,000 pcs monthly |
Ideal Applications
Product Details
Impact Screwdriver Bits — 25 / 50 / 90 mm, 1/4" hex — made of HSS M2 steel bits, S2 steel impact bits, fiberglass-reinforced abrasive discs, for construction, automotive-repair, electrical-installation. Wholesale direct from the EverForge factory (manufacturing since 2008).
Tested per ANSI B94.11M drill tolerance / disc burst-speed documentation (batch test records, every shipment). Monthly capacity 500,000 pcs across 3 production lines; MOQ 1,000 pcs, OEM logo and packaging, FOB Ningbo/Shanghai quote within 24 h.
VIImpact Screwdriver Bits — 25 / 50 / 90 mm, 1 / 4" hex. Nhà máy EverForge từ năm 2008 — MOQ 1.000 chiếc, sản xuất 15–25 ngày, báo giá FOB trong 24 giờ.
THImpact Screwdriver Bits — 25 / 50 / 90 mm, 1 / 4" hex. โรงงาน EverForge ก่อตั้งปี 2008 — MOQ 1,000 ชิ้น, ผลิต 15–25 วัน, ใบเสนอราคา FOB ภายใน 24 ชั่วโมง
KOImpact Screwdriver Bits — 25 / 50 / 90 mm, 1 / 4" hex. 2008년부터 생산하는 EverForge 공장 — MOQ 1,000개, 생산 15–25일, 24시간 내 FOB 견적.
Impact-rated screwdriver bits in 25 mm, 50 mm and 90 mm lengths, CNC-machined from S2 steel with torsion zone to absorb peak torque. Black oxide finish; custom bit holders and retail cards available. Sold by the thousand to power tool brands and fastener distributors.
From our Zhejiang production base, Impact Screwdriver Bits is one of the screwdriver bits manufacturer lines we export most. Colors: Black oxide. Buyers choose it for bulk or retail-card packing and torsion zone absorbs peak torque, fewer snapped bits, and it earns its keep in electrical-installation, construction, automotive-repair.
For container-load buyers: a 20GP container loads 400,000+ pcs of bits/discs in export cartons, blister or bulk cartons on plywood pallets, shrink-wrapped against moisture. Our trade terms are MOQ 1,000 pcs, FOB Ningbo / Shanghai (CIF on request), production in 12-18 days. Quantity-based FOB quotes go out within 24 hours.
The body is drop-forged CR-V steel, heat-treated and polished in-house. Production is audited under ISO 9001; third-party SGS reports ship with documents. We run OEM lines for distributors: custom logos, case colors and private-label packing from one 20GP up.
Key Features
Torsion zone absorbs peak torque, fewer snapped bits
CNC tips for exact screw fit, reduced cam-out
OEM packaging from 1,000 pcs
Product Highlights

Impact Screwdriver Bits — Build Highlights
Impact-rated screwdriver bits in 25 mm, 50 mm and 90 mm lengths, CNC-machined from S2 steel with torsion zone to absorb peak torque. Black oxide finish; custom bit holders and retail cards available. Sold by the thousand to power tool brands and fastener distributors.
Material & Construction
25 / 50 / 90 mm, 1/4" hex
Torsion zone absorbs peak torque, fewer snapped bits
Heat treatment
Forged and heat-treated in-house for consistent hardness
Surface finish
Anti-rust coating or mirror polish, tested in salt spray 48h
Application Scenes

Why Buy Direct From Our Factory
Factory Price
No trading-company margins. EXW/FOB quotes from our own production lines.
Fast Lead Time
7–15 days production for stocked items. Weekly container shipments.
OEM & Custom
Laser/stamped logos, custom handle colors, private-label packaging from 3,000 pcs.

